{"title":"Wireless Modules","description":"\u003cp\u003eWireless modules connect a project to a phone, another board or a network, with no cable.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eThe \u003cstrong\u003eHC-05\u003c\/strong\u003e Bluetooth module is a transparent serial bridge. A phone app's bytes arrive on its UART pins as if typed into the Serial Monitor.\u003c\/li\u003e\n\u003cli\u003eThe \u003cstrong\u003eHM-10\u003c\/strong\u003e adds Bluetooth Low Energy (BLE) to boards that do not have it.\u003c\/li\u003e\n\u003cli\u003eThe \u003cstrong\u003enRF24L01\u003c\/strong\u003e is a cheap 2.4GHz radio for board-to-board links.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLoRa\u003c\/strong\u003e modules trade speed for range. They send small, infrequent messages over long distances on very little power.\u003c\/li\u003e\n\u003cli\u003eThe \u003cstrong\u003eSIM800\u003c\/strong\u003e adds SMS and mobile data.\u003c\/li\u003e\n\u003cli\u003eBuilt-in alternatives: an ESP32 already has Wi-Fi, BLE and ESP-NOW, a direct peer-to-peer link between ESP32 boards with no router.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eHow to choose:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003ePick Bluetooth for phone control.\u003c\/li\u003e\n\u003cli\u003ePick ESP-NOW or an nRF24L01 for board-to-board links.\u003c\/li\u003e\n\u003cli\u003ePick LoRa for long range.\u003c\/li\u003e\n\u003cli\u003ePick GSM where there is no Wi-Fi.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eCheck the module's logic voltage before wiring. Many radios are 3.3V parts, which suits the ESP32 but may need level shifting on a 5V Arduino.\u003c\/p\u003e\n\u003ch2\u003eFrequently asked questions\u003c\/h2\u003e\n\u003ch3\u003eBluetooth Classic or BLE?\u003c\/h3\u003e\n\u003cp\u003eBLE for battery devices sending short readings. Classic for a continuous serial stream to a laptop or older app.\u003c\/p\u003e\n\u003ch3\u003eHow far does LoRa reach?\u003c\/h3\u003e\n\u003cp\u003eKilometres in good conditions, for small, infrequent messages. It is not for large data.\u003c\/p\u003e\n\u003ch3\u003eDo I need a module with an ESP32?\u003c\/h3\u003e\n\u003cp\u003eOften not. It has Wi-Fi, BLE and ESP-NOW built in. Add LoRa or GSM for long range or no Wi-Fi.\u003c\/p\u003e\n\u003ch3\u003eWhat is ESP-NOW?\u003c\/h3\u003e\n\u003cp\u003eA direct peer-to-peer protocol between ESP32 boards, with no router and no pairing.\u003c\/p\u003e\n\u003ch2\u003eGuides\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\u003ca href=\"\/blogs\/guides\/nrf24l01-vs-hc05-vs-espnow-cheap-wireless-compared\"\u003eNRF24L01 vs HC-05 vs ESP-NOW: Cheap Wireless Compared\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"\/blogs\/guides\/ble-vs-bluetooth-classic-which-does-your-project-need\"\u003eBLE vs Bluetooth Classic: Which Does Your Project Need?\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"\/blogs\/guides\/what-is-lora-wiring-and-errors\"\u003eWhat Is LoRa? Wiring and Errors (2026)\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cscript type=\"application\/ld+json\"\u003e{\"@context\": \"https:\/\/schema.org\", \"@type\": \"FAQPage\", \"mainEntity\": [{\"@type\": \"Question\", \"name\": \"Bluetooth Classic or BLE?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"BLE for battery devices sending short readings. Classic for a continuous serial stream to a laptop or older app.\"}}, {\"@type\": \"Question\", \"name\": \"How far does LoRa reach?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"Kilometres in good conditions, for small, infrequent messages. It is not for large data.\"}}, {\"@type\": \"Question\", \"name\": \"Do I need a module with an ESP32?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"Often not. It has Wi-Fi, BLE and ESP-NOW built in. Add LoRa or GSM for long range or no Wi-Fi.\"}}, {\"@type\": \"Question\", \"name\": \"What is ESP-NOW?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"A direct peer-to-peer protocol between ESP32 boards, with no router and no pairing.\"}}]}\u003c\/script\u003e\n\u003ch2\u003eReference pages on soldr.ai\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\u003ca href=\"https:\/\/soldr.ai\/docs\/components\/nrf24l01\"\u003enRF24L01 2.4 GHz transceiver\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"https:\/\/soldr.ai\/docs\/components\/xbee3-pro-zigbee\"\u003eDigi XBee3 PRO (Zigbee 3.0)\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"https:\/\/soldr.ai\/docs\/components\/rfm95pw-868\"\u003eRFM95PW LoRa module (868 MHz)\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"https:\/\/soldr.ai\/docs\/components\/sim800c\"\u003eSIM800C GSM modem\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"https:\/\/soldr.ai\/docs\/components\/sim808\"\u003eSIM808 GSM\/GPS module\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"https:\/\/soldr.ai\/docs\/components\/neo-m8n\"\u003eNEO-M8N GPS module\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"https:\/\/soldr.ai\/docs\/boards\/esp-12e\"\u003eESP-12E (ESP8266)\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"https:\/\/soldr.ai\/docs\/boards\/esp-01s\"\u003eESP-01S (ESP8266)\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"https:\/\/soldr.ai\/docs\/components\/sim800l-gsm\"\u003eSIM800L GSM module\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"https:\/\/soldr.ai\/docs\/components\/ra-02\"\u003eRa-02 LoRa module (433 MHz)\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eDescribe your build on \u003ca href=\"https:\/\/app.soldr.ai\"\u003eSoldr\u003c\/a\u003e and it picks the parts, writes and compiles the code, and shows how to wire them. Sign in and get 100 credits free.\u003c\/p\u003e","products":[{"product_id":"433mhz-antenna-quarter-wave-helical-for-rf-modules","title":"433MHz Antenna | Quarter Wave Helical for RF Modules","description":"\u003ch1\u003e433MHz Antenna – Quarter-Wave Helical for Wireless RF\u003c\/h1\u003e\n\n\u003cp\u003eThis 433MHz antenna is designed for short-range wireless communication using RF modules. It provides reliable signal transmission and reception for remote controls, IoT sensors, and hobbyist radio projects. The helical design offers a compact yet effective solution with a nominal 2dBi gain, making it ideal for projects where size matters without sacrificing performance. With its 50-ohm impedance, it matches standard RF circuits, minimizing signal loss.\u003c\/p\u003e\n\n\u003ch2\u003eKey Specifications\u003c\/h2\u003e\n\u003ctable\u003e\n  \u003cthead\u003e\u003ctr\u003e\n\u003cth\u003eSpecification\u003c\/th\u003e\n\u003cth\u003eValue\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n  \u003ctbody\u003e\n    \u003ctr\u003e\n\u003ctd\u003eFrequency Range\u003c\/td\u003e\n\u003ctd\u003e433 MHz\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003eImpedance\u003c\/td\u003e\n\u003ctd\u003e50 ohms\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003eVSWR\u003c\/td\u003e\n\u003ctd\u003e≤2.0\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003eGain\u003c\/td\u003e\n\u003ctd\u003e2 dBi typical\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003ePolarization\u003c\/td\u003e\n\u003ctd\u003eLinear (vertical)\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003eConnector\u003c\/td\u003e\n\u003ctd\u003eSMA Male (solderable pin also available)\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003eLength\u003c\/td\u003e\n\u003ctd\u003eApproximately 170 mm (quarter-wave)\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003c\/tbody\u003e\n\u003c\/table\u003e\n\n\u003ch2\u003eWhat You Can Build With This\u003c\/h2\u003e\n\u003cul\u003e\n  \u003cli\u003e433MHz wireless remote control for lights or fans\u003c\/li\u003e\n  \u003cli\u003eIoT sensor node transmitting temperature\/humidity data\u003c\/li\u003e\n  \u003cli\u003e\u003ca href=\"\/products\/esp32-garage-door-opener-kit-auto-open-and-close-via-phone-ble\"\u003eGarage door opener or car remote replacement\u003c\/a\u003e\u003c\/li\u003e\n  \u003cli\u003eSimple walkie-talkie for learning radio basics\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eCompatibility\u003c\/h2\u003e\n\u003cp\u003eThis antenna works with any 433MHz transmitter or receiver module, including popular pairs like FS1000A and XY-MK-5V. It connects via standard SMA jack or can be soldered directly to pads on circuits operating at 3.3V to 12V. Commonly used with Arduino, ESP8266, and Raspberry Pi for wireless data links. The quarter-wave design ensures a balanced radiation pattern in free space.\u003c\/p\u003e\n\n\u003ch2\u003eWiring Notes\u003c\/h2\u003e\n\u003cp\u003eIf using the SMA connector, screw it onto a mating SMA jack on your module. For direct solder, the center pin is the signal and the outer ground plane must be connected to circuit ground. Keep the antenna vertical and away from large metal objects for best range. No external matching network is required when used with typical 50Ω modules. For battery-powered projects, consider placing the antenna away from the battery to avoid detuning.\u003c\/p\u003e\n\n\u003ch2\u003eWhy Buy from Compoden\u003c\/h2\u003e\n\u003cp\u003eEvery component is sourced from verified suppliers and tested for compatibility before listing. We've spent 10 years building projects for makers, schools, and institutions across India. Ships from Bengaluru in 3-7 days. If defective on arrival, replace within 7 days.\u003c\/p\u003e\n\n\u003cdetails\u003e\u003csummary\u003eIs this compatible with 433MHz RF modules like FS1000A?\u003c\/summary\u003e\u003cp\u003eYes, it's tuned for 433MHz and directly fits modules with SMA jacks or solder pads. Works with FS1000A, XY-MK-5V, and similar.\u003c\/p\u003e\u003c\/details\u003e\n\u003cdetails\u003e\u003csummary\u003eWhat's the connector type?\u003c\/summary\u003e\u003cp\u003eThe antenna has an SMA male connector, but it also comes with a solderable pin at the base for direct PCB attachment.\u003c\/p\u003e\u003c\/details\u003e\n\u003cdetails\u003e\u003csummary\u003eCan I use this antenna outdoors?\u003c\/summary\u003e\u003cp\u003eIt is suitable for indoor and light outdoor use; however, for permanent outdoor installation, consider an antenna with weatherproofing like an IP-rated enclosure.\u003c\/p\u003e\u003c\/details\u003e\n\u003cdiv class=\"compoden-handoff\" style=\"margin-top:24px;padding:16px;background:#f0f4ff;border-left:4px solid #2B4D8F;border-radius:4px;\"\u003e\n  \u003cp style=\"margin:0 0 6px 0;font-weight:600;color:#1A3560;\"\u003e📦 Free Setup Handoff Document Included\u003c\/p\u003e\n  \u003cp style=\"margin:0;font-size:0.95em;color:#333;\"\u003eEvery Compoden order includes a free setup handoff document — step-by-step instructions to get your component working within minutes. Download it via QR code on your package. The handoff document is also trained to help you troubleshoot the majority of problems.\u003c\/p\u003e\n\u003c\/div\u003e\n","brand":"Compoden","offers":[{"title":"Default Title","offer_id":53445046763885,"sku":"CDN-0857","price":110.0,"currency_code":"INR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0999\/3997\/5533\/files\/433mhz-antenna-quarter-wave-helical-for-rf-modules-1214725.jpg?v=1790779807"},{"product_id":"ra-02-lora-module-433470mhz-sx1278-spi-for-arduino-iot","title":"RA-02 LoRa Module (433\/470MHz, SX1278, SPI) for Arduino \u0026 IoT","description":"\u003ch1\u003eRA-02 LoRa Module (433\/470 MHz, SX1278, SPI)\u003c\/h1\u003e\n\n\u003cp\u003eThe RA-02 is a long-range LoRa transceiver module built around the Semtech SX1278 chip. It operates in the 433\/470 MHz frequency bands and communicates via SPI, making it suitable for low-power, long-distance IoT applications. Its compact form factor and high sensitivity enable reliable data transmission over several kilometers in open areas.\u003c\/p\u003e\n\n\u003ch2\u003eKey Specifications\u003c\/h2\u003e\n\u003ctable\u003e\n  \u003cthead\u003e\u003ctr\u003e\n\u003cth\u003eSpecification\u003c\/th\u003e\n\u003cth\u003eValue\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n  \u003ctbody\u003e\n    \u003ctr\u003e\n\u003ctd\u003eFrequency Range\u003c\/td\u003e\n\u003ctd\u003e410–525 MHz (433\/470 MHz typical)\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003eCore IC\u003c\/td\u003e\n\u003ctd\u003eSemtech SX1278\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003eInterface\u003c\/td\u003e\n\u003ctd\u003eSPI\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003eOperating Voltage\u003c\/td\u003e\n\u003ctd\u003e2.5–3.7 V (3.3 V typical)\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003eOutput Power\u003c\/td\u003e\n\u003ctd\u003eUp to +20 dBm\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003eReceiver Sensitivity\u003c\/td\u003e\n\u003ctd\u003eDown to -148 dBm\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003eRange (Line-of-Sight)\u003c\/td\u003e\n\u003ctd\u003eUp to 10 km\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003c\/tbody\u003e\n\u003c\/table\u003e\n\n\u003ch2\u003eWhat You Can Build With This\u003c\/h2\u003e\n\u003cul\u003e\n  \u003cli\u003e\u003ca href=\"\/products\/kit-indoor-weather-station\"\u003eRemote weather station transmitting sensor data over kilometers\u003c\/a\u003e\u003c\/li\u003e\n  \u003cli\u003e\u003ca href=\"\/products\/kit-soil-moisture-sensor-starter-kit\"\u003eLow-power agricultural sensor network for soil moisture monitoring\u003c\/a\u003e\u003c\/li\u003e\n  \u003cli\u003e\u003ca href=\"\/products\/esp32-gps-tracker-kit-build-a-live-tracking-dashboard\"\u003eGPS tracker with long-range periodic location updates\u003c\/a\u003e\u003c\/li\u003e\n  \u003cli\u003eWireless home automation system extending beyond Wi-Fi range\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eCompatibility\u003c\/h2\u003e\n\u003cp\u003eThis module works with any 3.3V microcontroller with SPI support, including Arduino Uno (via level shifters), ESP32, ESP8266, and Raspberry Pi (with proper voltage conversion). It pairs commonly with the Arduino LoRa library and can connect directly to 3.3V boards like the ESP32 without additional components.\u003c\/p\u003e\n\n\u003ch2\u003eWiring Notes\u003c\/h2\u003e\n\u003cp\u003eConnect the SPI pins (MOSI, MISO, SCK, NSS) to the corresponding microcontroller pins. The DIO0 pin should be attached to a GPIO for interrupt-driven packet handling. Ensure a stable 3.3V supply and avoid long wires between the module and antenna connector to prevent signal loss.\u003c\/p\u003e\n\n\u003ch2\u003eWhy Buy from Compoden\u003c\/h2\u003e\n\u003cp\u003eEvery component is sourced from verified suppliers and tested for compatibility before listing. We've spent 10 years building projects for makers, schools, and institutions across India. Ships from Bengaluru in 3-7 days. If defective on arrival, replace within 7 days.\u003c\/p\u003e\n\n\u003cdetails\u003e\u003csummary\u003eIs this compatible with Arduino Uno?\u003c\/summary\u003e\u003cp\u003eYes, but the Uno operates at 5V logic. Use a logic level converter for the SPI lines and power the RA-02 with 3.3V to avoid damage.\u003c\/p\u003e\u003c\/details\u003e\n\u003cdetails\u003e\u003csummary\u003eWhat antenna does it require?\u003c\/summary\u003e\u003cp\u003eThe module has an IPEX connector for an external antenna. A 433\/470 MHz spring or duck antenna with 50 Ohm impedance is recommended. Ensure the antenna matches your chosen frequency band.\u003c\/p\u003e\u003c\/details\u003e\n\u003cdetails\u003e\u003csummary\u003eWhat is the typical range in an urban area?\u003c\/summary\u003e\u003cp\u003eIn dense urban environments, expect around 500 m to 2 km. Range depends on obstacles, antenna placement, and spreading factor settings.\u003c\/p\u003e\u003c\/details\u003e\n\u003cdiv class=\"compoden-handoff\" style=\"margin-top:24px;padding:16px;background:#f0f4ff;border-left:4px solid #2B4D8F;border-radius:4px;\"\u003e\n  \u003cp style=\"margin:0 0 6px 0;font-weight:600;color:#1A3560;\"\u003e📦 Free Setup Handoff Document Included\u003c\/p\u003e\n  \u003cp style=\"margin:0;font-size:0.95em;color:#333;\"\u003eEvery Compoden order includes a free setup handoff document — step-by-step instructions to get your component working within minutes. Download it via QR code on your package. The handoff document is also trained to help you troubleshoot the majority of problems.\u003c\/p\u003e\n\u003c\/div\u003e\n","brand":"Compoden","offers":[{"title":"Default Title","offer_id":53445050138989,"sku":"CDN-0865","price":410.0,"currency_code":"INR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0999\/3997\/5533\/files\/ra-02-lora-module-433470mhz-sx1278-spi-for-arduino-iot-3434130.jpg?v=1790779748"},{"product_id":"hc-05-bluetooth-module-spp-24ghz-masterslave","title":"HC-05 Bluetooth Module – SPP, 2.4GHz, Master\/Slave","description":"\u003ch1\u003eHC-05 Bluetooth Module – SPP Protocol, Master\/Slave, 2.4GHz\u003c\/h1\u003e\n\u003cp\u003eThe HC-05 is a versatile Bluetooth serial communication module that enables wireless data transfer between microcontrollers and other Bluetooth devices. It operates on the SPP (Serial Port Profile) protocol and can be configured as a master or slave, making it ideal for projects that require cable-free serial links. With a range of up to 10 meters and support for common baud rates, it’s a staple in IoT, robotics, and home automation.\u003c\/p\u003e\n\n\u003ch2\u003eKey Specifications\u003c\/h2\u003e\n\u003ctable\u003e\n  \u003cthead\u003e\u003ctr\u003e\n\u003cth\u003eSpecification\u003c\/th\u003e\n\u003cth\u003eValue\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n  \u003ctbody\u003e\n    \u003ctr\u003e\n\u003ctd\u003eBluetooth Version\u003c\/td\u003e\n\u003ctd\u003eV2.0+EDR\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003eFrequency\u003c\/td\u003e\n\u003ctd\u003e2.4GHz ISM band\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003eOperating Voltage\u003c\/td\u003e\n\u003ctd\u003e3.3V (5V tolerant on RX)\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003eCurrent\u003c\/td\u003e\n\u003ctd\u003e30mA (paired), 8mA (standby)\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003eRange\u003c\/td\u003e\n\u003ctd\u003eUp to 10 meters (open space)\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003eBaud Rate\u003c\/td\u003e\n\u003ctd\u003e9600bps default (adjustable up to 1382400)\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003c\/tbody\u003e\n\u003c\/table\u003e\n\n\u003ch2\u003eWhat You Can Build With This\u003c\/h2\u003e\n\u003cul\u003e\n  \u003cli\u003eWireless serial monitor for Arduino projects\u003c\/li\u003e\n  \u003cli\u003e\u003ca href=\"\/products\/kit-bluetooth-controlled-car\"\u003eBluetooth-controlled robot or RC car\u003c\/a\u003e\u003c\/li\u003e\n  \u003cli\u003eHome automation system with smartphone app\u003c\/li\u003e\n  \u003cli\u003e\u003ca href=\"\/products\/kit-soil-sensor-data-logger\"\u003eWireless sensor data logger\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eCompatibility\u003c\/h2\u003e\n\u003cp\u003eThe HC-05 works with any microcontroller that has a UART\/serial interface, including Arduino Uno, Mega, Nano, ESP32, and Raspberry Pi (with level shifting). It uses 3.3V logic, but the RX pin is 5V tolerant, allowing direct connection to 5V MCUs. Common pairings include using it with an Arduino Uno for a Bluetooth-controlled LED matrix or a Raspberry Pi for a wireless serial gateway.\u003c\/p\u003e\n\n\u003ch2\u003eWiring Notes\u003c\/h2\u003e\n\u003cp\u003eConnect VCC to 3.3V (or a regulated 5V if the module has an onboard regulator), GND to common ground, TX of HC-05 to RX of MCU, and RX to TX. Do not exceed 5V on the RX pin. For AT command mode to change settings, enter command mode by pulling the KEY\/EN pin high before powering up or pressing a button on some modules.\u003c\/p\u003e\n\n\u003ch2\u003eWhy Buy from Compoden\u003c\/h2\u003e\n\u003cp\u003eEvery component is sourced from verified suppliers and tested for compatibility before listing. We've spent 10 years building projects for makers, schools, and institutions across India. Ships from Bengaluru in 3-7 days. If defective on arrival, replace within 7 days.\u003c\/p\u003e\n\n\u003cdetails\u003e\u003csummary\u003eIs this compatible with Arduino Uno?\u003c\/summary\u003e\u003cp\u003eYes, the HC-05 works perfectly with Arduino Uno. Connect HC-05 TX to Arduino RX (pin 0) and RX to TX (pin 1). Use the SoftwareSerial library if you need to keep the hardware serial for programming.\u003c\/p\u003e\u003c\/details\u003e\n\u003cdetails\u003e\u003csummary\u003eHow do I switch between master and slave mode?\u003c\/summary\u003e\u003cp\u003eMode can be switched using AT commands via the serial interface. Enter command mode by pulling the KEY pin high before powering, then send AT commands to set the role.\u003c\/p\u003e\u003c\/details\u003e\n\u003cdetails\u003e\u003csummary\u003eCan I power it directly from a 5V Arduino pin?\u003c\/summary\u003e\u003cp\u003eMost HC-05 modules have a voltage regulator and can be powered from 5V, but check your module’s labeling. If not, use a logic level converter or power from 3.3V.\u003c\/p\u003e\u003c\/details\u003e\n\u003cdiv class=\"compoden-handoff\" style=\"margin-top:24px;padding:16px;background:#f0f4ff;border-left:4px solid #2B4D8F;border-radius:4px;\"\u003e\n  \u003cp style=\"margin:0 0 6px 0;font-weight:600;color:#1A3560;\"\u003e📦 Free Setup Handoff Document Included\u003c\/p\u003e\n  \u003cp style=\"margin:0;font-size:0.95em;color:#333;\"\u003eEvery Compoden order includes a free setup handoff document — step-by-step instructions to get your component working within minutes. Download it via QR code on your package. The handoff document is also trained to help you troubleshoot the majority of problems.\u003c\/p\u003e\n\u003c\/div\u003e\n","brand":"Compoden","offers":[{"title":"Default Title","offer_id":53445068685677,"sku":"CDN-0897","price":240.0,"currency_code":"INR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0999\/3997\/5533\/files\/hc-05-bluetooth-module-spp-24ghz-masterslave-1656996.jpg?v=1790779747"},{"product_id":"neo-6m-gps-module-with-built-in-antenna","title":"NEO-6M GPS Module with Built-in Antenna","description":"\u003ch1\u003eNEO-6M GPS Module\u003c\/h1\u003e\n\u003cp\u003eThe NEO-6M GPS module provides accurate positioning using the U-blox 6 chipset. With a built-in ceramic antenna and serial interface, it's ideal for Arduino, Raspberry Pi, and other microcontroller projects. Start capturing GPS coordinates within seconds of power-up.\u003c\/p\u003e\n\n\u003ch2\u003eKey Specifications\u003c\/h2\u003e\n\u003ctable\u003e\n  \u003cthead\u003e\u003ctr\u003e\n\u003cth\u003eSpecification\u003c\/th\u003e\n\u003cth\u003eValue\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n  \u003ctbody\u003e\n    \u003ctr\u003e\n\u003ctd\u003eChipset\u003c\/td\u003e\n\u003ctd\u003eU-blox NEO-6M\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003eSupply Voltage\u003c\/td\u003e\n\u003ctd\u003e3.3V - 5V DC (onboard regulator)\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003eInterface\u003c\/td\u003e\n\u003ctd\u003eUART TTL (TX, RX)\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003eDefault Baud Rate\u003c\/td\u003e\n\u003ctd\u003e9600 bps\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003ePosition Accuracy\u003c\/td\u003e\n\u003ctd\u003e2.5 m CEP\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003eAntenna\u003c\/td\u003e\n\u003ctd\u003eBuilt-in ceramic patch antenna\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003c\/tbody\u003e\n\u003c\/table\u003e\n\n\u003ch2\u003eWhat You Can Build With This\u003c\/h2\u003e\n\u003cul\u003e\n  \u003cli\u003eGPS data logger for hiking and field surveys\u003c\/li\u003e\n  \u003cli\u003eReal-time vehicle tracking with GSM\/GPRS module\u003c\/li\u003e\n  \u003cli\u003ePortable navigation display using an OLED screen\u003c\/li\u003e\n  \u003cli\u003eAccurate time reference for NTP servers or radio clocks\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eCompatibility\u003c\/h2\u003e\n\u003cp\u003eCompatible with any 3.3V or 5V microcontroller with UART including Arduino Uno, Mega, Nano, ESP32, Raspberry Pi (via level shifting if needed), and STM32. Outputs standard NMEA sentences and works well with the TinyGPS++ library for Arduino.\u003c\/p\u003e\n\n\u003ch2\u003eWiring Notes\u003c\/h2\u003e\n\u003cp\u003eConnect VCC to 3.3V or 5V, GND to ground, TX of GPS to RX of MCU, RX of GPS to TX of MCU (optional for commands). Default baud is 9600. For a 5V Arduino, the onboard regulator protects only VCC. The NEO-6M serial input is rated 3.6V max, so use a level shifter or resistor divider on the Arduino TX to GPS RX line. Keep the antenna side facing open sky for best reception.\u003c\/p\u003e\n\n\u003ch2\u003eWhy Buy from Compoden\u003c\/h2\u003e\n\u003cp\u003eEvery component is sourced from verified suppliers and tested for compatibility before listing. We've spent 10 years building projects for makers, schools, and institutions across India. Ships from Bengaluru in 3-7 days. If defective on arrival, replace within 7 days.\u003c\/p\u003e\n\n\u003cdetails\u003e\u003csummary\u003eIs this compatible with Arduino Uno?\u003c\/summary\u003e\u003cp\u003eYes. Connect VCC to 5V, GND to GND, GPS TX to Arduino pin 4 (RX), and use SoftwareSerial. The onboard regulator handles the 5V safely.\u003c\/p\u003e\u003c\/details\u003e\n\u003cdetails\u003e\u003csummary\u003eDoes it need an external antenna?\u003c\/summary\u003e\u003cp\u003eThe module includes a built-in ceramic patch antenna for most uses. For weak signal areas, some variants have a U.FL connector for an external active antenna.\u003c\/p\u003e\u003c\/details\u003e\n\u003cdetails\u003e\u003csummary\u003eWhat is the typical time to first fix?\u003c\/summary\u003e\u003cp\u003eCold start is around 27 seconds under open sky. Hot start can be under 1 second if the module has recent almanac data and a backup battery is connected.\u003c\/p\u003e\u003c\/details\u003e\n\u003cdiv class=\"compoden-handoff\" style=\"margin-top:24px;padding:16px;background:#f0f4ff;border-left:4px solid #2B4D8F;border-radius:4px;\"\u003e\n  \u003cp style=\"margin:0 0 6px 0;font-weight:600;color:#1A3560;\"\u003e📦 Free Setup Handoff Document Included\u003c\/p\u003e\n  \u003cp style=\"margin:0;font-size:0.95em;color:#333;\"\u003eEvery Compoden order includes a free setup handoff document — step-by-step instructions to get your component working within minutes. Download it via QR code on your package. The handoff document is also trained to help you troubleshoot the majority of problems.\u003c\/p\u003e\n\u003c\/div\u003e\n","brand":"Compoden","offers":[{"title":"Default Title","offer_id":53445140218221,"sku":"CDN-0854","price":470.0,"currency_code":"INR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0999\/3997\/5533\/files\/neo-6m-gps-module-with-built-in-antenna-1021779.jpg?v=1790779446"},{"product_id":"sim800l-gsm-module-for-arduino-esp32-raspberry-pi-compoden","title":"SIM800L GSM Module for Arduino, ESP32, Raspberry Pi | Compoden","description":"\u003ch1\u003eSIM800L GSM Module\u003c\/h1\u003e\n\u003cp\u003eThe SIM800L is a compact quad-band GSM\/GPRS module supporting 850\/900\/1800\/1900 MHz bands. It enables SMS, voice calls, and GPRS data connectivity for microcontrollers like Arduino, ESP32, and Raspberry Pi. Ideal for IoT applications requiring cellular communication with low power footprint.\u003c\/p\u003e\n\n\u003ch2\u003eKey Specifications\u003c\/h2\u003e\n\u003ctable\u003e\n  \u003cthead\u003e\u003ctr\u003e\n\u003cth\u003eSpecification\u003c\/th\u003e\n\u003cth\u003eValue\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n  \u003ctbody\u003e\n    \u003ctr\u003e\n\u003ctd\u003eSupported Bands\u003c\/td\u003e\n\u003ctd\u003e850\/900\/1800\/1900 MHz\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003eGPRS Class\u003c\/td\u003e\n\u003ctd\u003eClass 12\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003eCommunication\u003c\/td\u003e\n\u003ctd\u003eAT commands via UART\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003eSupply Voltage\u003c\/td\u003e\n\u003ctd\u003e3.4V - 4.4V (peak 2A)\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003eSIM Card\u003c\/td\u003e\n\u003ctd\u003eMicro SIM\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003eDimensions\u003c\/td\u003e\n\u003ctd\u003e24mm x 24mm x 3mm\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003c\/tbody\u003e\n\u003c\/table\u003e\n\n\u003ch2\u003eWhat You Can Build With This\u003c\/h2\u003e\n\u003cul\u003e\n  \u003cli\u003eRemote SMS-controlled relay switch\u003c\/li\u003e\n  \u003cli\u003e\u003ca href=\"\/products\/esp32-gps-tracker-kit-build-a-live-tracking-dashboard\"\u003eGPS tracker with voice feedback\u003c\/a\u003e\u003c\/li\u003e\n  \u003cli\u003e\u003ca href=\"\/products\/kit-indoor-weather-station\"\u003eWeather station sending data via GPRS\u003c\/a\u003e\u003c\/li\u003e\n  \u003cli\u003eVehicle anti-theft alert system\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eCompatibility\u003c\/h2\u003e\n\u003cp\u003eThe SIM800L uses 3.3V logic but many breakout boards are 5V tolerant. It works with Arduino Uno\/Mega (with 5V tolerance), ESP32, and Raspberry Pi (level-shift required). Requires a stable 4V supply capable of 2A peaks; we recommend a dedicated Li-Po battery or a 3.7V–4.2V buck converter. Pair with a GPS module like NEO-6M for live tracking.\u003c\/p\u003e\n\n\u003ch2\u003eWiring Notes\u003c\/h2\u003e\n\u003cp\u003eConnect VCC to a 3.7–4.2V power source (not to Arduino 5V), GND to common ground, TX to RX of microcontroller, RX to TX. Use a 1kΩ resistor on RX for 5V micros. Ensure antenna is connected before powering.\u003c\/p\u003e\n\n\u003ch2\u003eWhy Buy from Compoden\u003c\/h2\u003e\n\u003cp\u003eEvery component is sourced from verified suppliers and tested for compatibility before listing. We've spent 10 years building projects for makers, schools, and institutions across India. Ships from Bengaluru in 3-7 days. If defective on arrival, replace within 7 days.\u003c\/p\u003e\n\n\u003cdetails\u003e\u003csummary\u003eIs this compatible with Arduino Uno?\u003c\/summary\u003e\u003cp\u003eYes, the SIM800L can communicate with Arduino Uno using Serial (SoftwareSerial). Make sure to power the module with a separate 3.7–4.2V supply as the Arduino 5V cannot provide the required peak current.\u003c\/p\u003e\u003c\/details\u003e\n\u003cdetails\u003e\u003csummary\u003eDoes it support 4G\/LTE networks?\u003c\/summary\u003e\u003cp\u003eNo, the SIM800L only supports 2G GSM\/GPRS networks. For 4G, consider SIM7600 modules.\u003c\/p\u003e\u003c\/details\u003e\n\u003cdetails\u003e\u003csummary\u003eWhat SIM card does it use?\u003c\/summary\u003e\u003cp\u003eIt uses a standard Micro SIM. Ensure the SIM is unlocked and has active SMS and data plan. 2G network must be available in your area.\u003c\/p\u003e\u003c\/details\u003e\n\u003cdiv class=\"compoden-handoff\" style=\"margin-top:24px;padding:16px;background:#f0f4ff;border-left:4px solid #2B4D8F;border-radius:4px;\"\u003e\n  \u003cp style=\"margin:0 0 6px 0;font-weight:600;color:#1A3560;\"\u003e📦 Free Setup Handoff Document Included\u003c\/p\u003e\n  \u003cp style=\"margin:0;font-size:0.95em;color:#333;\"\u003eEvery Compoden order includes a free setup handoff document — step-by-step instructions to get your component working within minutes. Download it via QR code on your package. The handoff document is also trained to help you troubleshoot the majority of problems.\u003c\/p\u003e\n\u003c\/div\u003e\n","brand":"Compoden","offers":[{"title":"Default Title","offer_id":53445147328877,"sku":"CDN-0877","price":410.0,"currency_code":"INR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0999\/3997\/5533\/files\/sim800l-gsm-module-for-arduino-esp32-raspberry-pi-compoden-8540908.jpg?v=1790779446"},{"product_id":"wifi-serial-transceiver-module-esp8266-esp-01-s-1m-flash","title":"WiFi Serial Transceiver Module - ESP8266 ESP-01 S (1M Flash)","description":"\u003ch1\u003eWiFi Serial Transceiver Module - ESP8266 ESP-01 S (1M Flash)\u003c\/h1\u003e\n\n\u003cp\u003eThe ESP8266 ESP-01 S is a WiFi serial transceiver module with 1MB flash memory, enabling wireless communication for microcontroller-based projects. It is designed for makers and engineers adding WiFi connectivity to Arduino, ESP32, or Raspberry Pi systems.\u003c\/p\u003e\n\n\u003ch2\u003eSpecifications\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eWiFi standard: 802.11 b\/g\/n\u003c\/li\u003e\n\u003cli\u003eFlash memory: 1MB\u003c\/li\u003e\n\u003cli\u003eOperating voltage: 3.3V\u003c\/li\u003e\n\u003cli\u003eLogic level: 3.3V\u003c\/li\u003e\n\u003cli\u003eInterface: UART (serial)\u003c\/li\u003e\n\u003cli\u003ePin count: 8 pins (2x4 header)\u003c\/li\u003e\n\u003cli\u003eDimensions: 25mm x 14mm\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eCompatible with\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eArduino (Uno, Mega, Nano)\u003c\/li\u003e\n\u003cli\u003eESP32\u003c\/li\u003e\n\u003cli\u003eRaspberry Pi (any model)\u003c\/li\u003e\n\u003cli\u003eSTM32\u003c\/li\u003e\n\u003cli\u003eAny 3.3V logic microcontroller\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eWhat you can build with it\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eWiFi-enabled temperature and humidity sensor that sends data to a cloud dashboard\u003c\/li\u003e\n\u003cli\u003eSmart home relay controller for switching lights or appliances via smartphone\u003c\/li\u003e\n\u003cli\u003eIoT weather station logging real-time environmental data to a web server\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eBuilt and Backed by Compoden\u003c\/h2\u003e\n\u003cp\u003eEvery ESP8266 ESP-01 S module from Compoden includes access to our AI build companion, delivered via QR code, email, or WhatsApp, which guides you through wiring and programming the module into a working project. With 10 years of experience supplying electronics to makers, schools, and engineering institutions across India, we ensure reliable components and practical support. Pay your way: UPI or cards anywhere in India, plus COD if checkout offers it for your order.\u003c\/p\u003e\n\n\u003cdetails\u003e\n\u003csummary\u003eWhat is the difference between ESP-01 and ESP-01 S?\u003c\/summary\u003e\n\u003cp\u003eThe ESP-01 S has 1MB flash memory, compared to the original ESP-01's 512KB. This provides more space for firmware and applications.\u003c\/p\u003e\n\u003c\/details\u003e\n\n\u003cdetails\u003e\n\u003csummary\u003eWhat payment options are available for the ESP8266 ESP-01 S?\u003c\/summary\u003e\n\u003cp\u003eYou can pay using UPI, credit\/debit cards, or Cash on Delivery (COD) if checkout offers it for your order. All payment methods are available across India.\u003c\/p\u003e\n\u003c\/details\u003e\n\n\u003cdetails\u003e\n\u003csummary\u003eHow long does delivery take?\u003c\/summary\u003e\n\u003cp\u003eWe ship the ESP8266 ESP-01 S across India including Delhi, Mumbai, Bangalore, Hyderabad, Chennai, and Pune. Delivery takes 2-7 days after dispatch, depending on your location.\u003c\/p\u003e\n\u003c\/details\u003e\n\n\u003cp\u003eBuy WiFi Serial Transceiver Module - ESP8266 ESP-01 S Online in India from Compoden, with UPI and cards, plus COD if checkout offers it for your order.\u003c\/p\u003e\n\n","brand":"Compoden","offers":[{"title":"Default Title","offer_id":53492630847853,"sku":"CDN-2332","price":400.0,"currency_code":"INR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0999\/3997\/5533\/files\/wifi-serial-transceiver-module-esp8266-esp-01-s-1m-flash-9818977.jpg?v=1785259627"},{"product_id":"wifi-serial-transceiver-module-esp8266-esp-12f","title":"WiFi Serial Transceiver Module - ESP8266 ESP-12F","description":"\u003ch1\u003eWiFi Serial Transceiver Module - ESP8266 ESP-12F\u003c\/h1\u003e\n\nThe ESP8266 ESP-12F is a compact WiFi serial transceiver module that adds wireless connectivity to any microcontroller project. It integrates a TCP\/IP protocol stack and a 32-bit microcontroller, making it ideal for IoT applications and remote sensor monitoring.\n\n\u003ch2\u003eSpecifications\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eOperating voltage: 3.3V (logic level)\u003c\/li\u003e\n\u003cli\u003eWiFi standard: 802.11 b\/g\/n\u003c\/li\u003e\n\u003cli\u003eInterface: UART (serial) with AT command set\u003c\/li\u003e\n\u003cli\u003eFlash memory: 4MB\u003c\/li\u003e\n\u003cli\u003ePin count: 16 accessible GPIO pins (including ADC, PWM, I2C, SPI)\u003c\/li\u003e\n\u003cli\u003eDimensions: 24mm x 16mm x 3mm\u003c\/li\u003e\n\u003cli\u003eAntenna: PCB trace antenna with IPEX connector option\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eCompatible with\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eArduino Uno, Mega, Nano\u003c\/li\u003e\n\u003cli\u003eESP32 and ESP8266 development boards\u003c\/li\u003e\n\u003cli\u003eRaspberry Pi (any model)\u003c\/li\u003e\n\u003cli\u003eSTM32 and other 3.3V logic microcontrollers\u003c\/li\u003e\n\u003cli\u003ePIC, AVR, and ARM-based boards\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eWhat you can build with it\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eWiFi-enabled temperature and humidity monitor that sends data to a cloud dashboard\u003c\/li\u003e\n\u003cli\u003eSmart home relay controller operated via smartphone over local network\u003c\/li\u003e\n\u003cli\u003eRemote weather station logging sensor readings to ThingSpeak or Blynk\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eBuilt and Backed by Compoden\u003c\/h2\u003e\n\u003cp\u003eEvery ESP8266 ESP-12F module you buy includes access to our AI build companion — delivered via QR code, email, or WhatsApp — that guides you through wiring and programming this part into a working project. With 10 years of supplying makers, schools, and engineering institutions across India, we ensure you get genuine components and reliable support. Pay your way: UPI or cards anywhere in India, plus COD if checkout offers it for your order.\u003c\/p\u003e\n\n\u003cdetails\u003e\n\u003csummary\u003eWhat is the difference between ESP-12E and ESP-12F?\u003c\/summary\u003e\n\u003cp\u003eThe ESP-12F has an improved PCB antenna design for better WiFi range and signal strength compared to the ESP-12E. Both modules use the same ESP8266 chip and are pin-compatible.\u003c\/p\u003e\n\u003c\/details\u003e\n\n\u003cdetails\u003e\n\u003csummary\u003eWhat payment options are available for the ESP8266 ESP-12F module?\u003c\/summary\u003e\n\u003cp\u003eYou can pay using UPI, credit\/debit cards, or Cash on Delivery (COD) if checkout offers it for your order. All payment methods are available across India.\u003c\/p\u003e\n\u003c\/details\u003e\n\n\u003cdetails\u003e\n\u003csummary\u003eHow do I program the ESP-12F module?\u003c\/summary\u003e\n\u003cp\u003eYou can program it using the Arduino IDE with the ESP8266 board package installed, or via AT commands over serial from any microcontroller. A USB-to-serial converter is required for standalone programming.\u003c\/p\u003e\n\u003c\/details\u003e\n\n\u003cdetails\u003e\n\u003csummary\u003eHow long does delivery take?\u003c\/summary\u003e\n\u003cp\u003eWe ship the ESP8266 ESP-12F module across India including Delhi, Mumbai, Bangalore, Hyderabad, Chennai, and Pune. Delivery takes 2-7 days after dispatch, depending on your location.\u003c\/p\u003e\n\u003c\/details\u003e\n\n","brand":"Compoden","offers":[{"title":"Default Title","offer_id":53492634026349,"sku":"CDN-2334","price":343.0,"currency_code":"INR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0999\/3997\/5533\/files\/wifi-serial-transceiver-module-esp8266-esp-12f-8658380.jpg?v=1785259627"},{"product_id":"wifi-serial-transceiver-module-breakout-board-esp8266-esp-05","title":"WiFi Serial Transceiver Module Breakout Board - ESP8266 ESP-05","description":"\u003ch1\u003eWiFi Serial Transceiver Module Breakout Board - ESP8266 ESP-05\u003c\/h1\u003e\n\u003cp\u003eThis WiFi Serial Transceiver Module Breakout Board features the ESP8266 ESP-05, a compact UART-to-WiFi module designed for adding wireless connectivity to microcontroller projects. It is ideal for makers, students, and engineers building IoT prototypes in India.\u003c\/p\u003e\n\n\u003ch2\u003eSpecifications\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eLogic Level: 3.3V\u003c\/li\u003e\n\u003cli\u003eInterface: UART (Serial)\u003c\/li\u003e\n\u003cli\u003eProtocol: 802.11 b\/g\/n\u003c\/li\u003e\n\u003cli\u003eFrequency: 2.4 GHz\u003c\/li\u003e\n\u003cli\u003ePinout: VCC, GND, TX, RX, CH_PD, RST\u003c\/li\u003e\n\u003cli\u003eDimensions: 25mm x 15mm\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eCompatible with\u003c\/h2\u003e\n\u003cp\u003eArduino Uno, Arduino Mega, ESP32, ESP8266 NodeMCU, Raspberry Pi, STM32, and any 3.3V logic microcontroller with UART.\u003c\/p\u003e\n\n\u003ch2\u003eWhat you can build with it\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eWiFi-enabled temperature and humidity sensor that sends data to a cloud dashboard.\u003c\/li\u003e\n\u003cli\u003eRemote-controlled relay switch for home automation via a smartphone app.\u003c\/li\u003e\n\u003cli\u003eSerial-to-WiFi bridge for logging sensor data from an Arduino to a web server.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eBuilt and Backed by Compoden\u003c\/h2\u003e\n\u003cp\u003eWith 10 years of experience supplying electronics to schools and engineering institutions in Bengaluru, we ensure every module is ready to use. When you buy this ESP-05 from Compoden, you get access to our AI build companion via QR code, email, or WhatsApp — it helps you wire and program this module into a working project step by step. Pay your way: UPI or cards anywhere in India, plus COD if checkout offers it for your order.\u003c\/p\u003e\n\n\u003cdetails\u003e\n\u003csummary\u003eWhat is the operating voltage of the ESP-05?\u003c\/summary\u003e\n\u003cp\u003eThe ESP-05 operates at 3.3V logic. Connecting it to 5V logic may damage the module. Use a level shifter if interfacing with 5V microcontrollers.\u003c\/p\u003e\n\u003c\/details\u003e\n\n\u003cdetails\u003e\n\u003csummary\u003eWhat payment options are available for the WiFi Serial Transceiver Module ESP8266 ESP-05?\u003c\/summary\u003e\n\u003cp\u003eYou can pay using UPI, credit\/debit cards, or Cash on Delivery (COD) if checkout offers it for your order. All payment options are available across India.\u003c\/p\u003e\n\u003c\/details\u003e\n\n\u003cdetails\u003e\n\u003csummary\u003eHow do I get started with the ESP-05?\u003c\/summary\u003e\n\u003cp\u003eConnect VCC and GND to 3.3V, then connect TX\/RX to your microcontroller's UART pins. Use AT commands via a serial terminal to configure WiFi. Our AI build companion provides wiring diagrams and sample code.\u003c\/p\u003e\n\u003c\/details\u003e\n\n\u003cdetails\u003e\n\u003csummary\u003eHow long does delivery take?\u003c\/summary\u003e\n\u003cp\u003eWe ship the WiFi Serial Transceiver Module ESP8266 ESP-05 across India including Delhi, Mumbai, Bangalore, Hyderabad, Chennai, and Pune. Delivery takes 2-7 days after dispatch, depending on your location.\u003c\/p\u003e\n\u003c\/details\u003e\n\n\u003cp\u003eBuy the WiFi Serial Transceiver Module ESP8266 ESP-05 online in India from Compoden, with UPI and cards, plus COD if checkout offers it for your order.\u003c\/p\u003e\n\n","brand":"Compoden","offers":[{"title":"Default Title","offer_id":53492634288493,"sku":"CDN-2330","price":488.0,"currency_code":"INR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0999\/3997\/5533\/files\/wifi-serial-transceiver-module-breakout-board-esp8266-esp-05-5988171.jpg?v=1785259627"},{"product_id":"wifi-serial-transceiver-module-esp8266-esp-12e","title":"WiFi Serial Transceiver Module - ESP8266 ESP-12E","description":"\u003ch1\u003eWiFi Serial Transceiver Module - ESP8266 ESP-12E\u003c\/h1\u003e\n\n\u003cp\u003eThe ESP8266 ESP-12E is a highly integrated WiFi serial transceiver module that enables microcontrollers to connect to a 2.4 GHz WiFi network. It is ideal for makers, students, and engineers adding wireless connectivity to embedded projects.\u003c\/p\u003e\n\n\u003ch2\u003eSpecifications\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eOperating voltage: 3.3V (logic level)\u003c\/li\u003e\n\u003cli\u003eWiFi standard: 802.11 b\/g\/n\u003c\/li\u003e\n\u003cli\u003eInterface: UART (serial) with AT command set\u003c\/li\u003e\n\u003cli\u003eFlash memory: 4 MB\u003c\/li\u003e\n\u003cli\u003eGPIO pins: 11 (including PWM, I2C, SPI)\u003c\/li\u003e\n\u003cli\u003eOnboard PCB antenna\u003c\/li\u003e\n\u003cli\u003eDimensions: 24 x 16 mm\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eCompatible with\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eArduino Uno, Mega, Nano only through a 3.3 V supply and a 5-to-3.3 V level shifter (or divider) on the module RX line; never 5 V on any pin. ESP-12E pins are 3.3 V only (max VDD+0.3 V); use a level shifter with 5 V boards.\u003c\/li\u003e\n\u003cli\u003eESP32, ESP8266-based boards\u003c\/li\u003e\n\u003cli\u003eRaspberry Pi (all models)\u003c\/li\u003e\n\u003cli\u003eSTM32, PIC, AVR microcontrollers\u003c\/li\u003e\n\u003cli\u003eAny 3.3V logic serial device\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eWhat you can build with it\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eIoT weather station that sends sensor data to a cloud dashboard\u003c\/li\u003e\n\u003cli\u003eSmart home relay controller for lights and appliances\u003c\/li\u003e\n\u003cli\u003eWiFi-enabled data logger for remote monitoring\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eBuilt and Backed by Compoden\u003c\/h2\u003e\n\u003cp\u003eEvery ESP-12E module comes with access to our AI build companion, delivered via QR code, email, or WhatsApp, to help you wire and program it into a working project. With 10 years of supplying electronics to Indian makers and institutions, we ensure reliable components and responsive support. Pay your way: UPI or cards anywhere in India, plus COD if checkout offers it for your order.\u003c\/p\u003e\n\n\u003cdetails\u003e\n\u003csummary\u003eWhat is the difference between ESP-12E and ESP-12F?\u003c\/summary\u003e\n\u003cp\u003eThe ESP-12E and ESP-12F are functionally identical. The ESP-12F has a slightly improved antenna design for better range, but both use the same ESP8266 chip and AT command set.\u003c\/p\u003e\n\u003c\/details\u003e\n\n\u003cdetails\u003e\n\u003csummary\u003eWhat payment options are available for the ESP8266 ESP-12E?\u003c\/summary\u003e\n\u003cp\u003eYou can pay via UPI, credit\/debit cards, or Cash on Delivery (COD) if checkout offers it for your order. All options are available across India.\u003c\/p\u003e\n\u003c\/details\u003e\n\n\u003cdetails\u003e\n\u003csummary\u003eHow long does delivery take?\u003c\/summary\u003e\n\u003cp\u003eWe ship the ESP8266 ESP-12E across India including Delhi, Mumbai, Bangalore, Hyderabad, Chennai, and Pune. Delivery takes 2-7 days after dispatch, depending on your location.\u003c\/p\u003e\n\u003c\/details\u003e\n\n\u003cp\u003eBuy the WiFi Serial Transceiver Module ESP8266 ESP-12E online in India with UPI and cards, plus COD if checkout offers it for your order.\u003c\/p\u003e\n\n","brand":"Compoden","offers":[{"title":"Default Title","offer_id":53492634714477,"sku":"CDN-2333","price":415.0,"currency_code":"INR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0999\/3997\/5533\/files\/wifi-serial-transceiver-module-esp8266-esp-12e-5199316.jpg?v=1785259627"},{"product_id":"esp8266-esp-01-wifi-module-downloader-link-v1-0-without-wireless-module","title":"ESP8266 ESP 01 Wifi Module Downloader LINK v1.0 without Wireless Module","description":"\u003ch1\u003eESP8266 ESP-01 Downloader LINK v1.0 – UART Programmer without Wireless Module\u003c\/h1\u003e\n\nThe ESP8266 ESP-01 Downloader LINK v1.0 is a dedicated UART programmer board designed to flash firmware onto ESP-01 WiFi modules. It provides a reliable USB-to-serial interface for uploading code and debugging, ideal for makers and students working with ESP8266-based IoT projects.\n\n\u003ch2\u003eSpecifications\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eInterface: USB to UART (CP2102 or CH340G based)\u003c\/li\u003e\n\u003cli\u003eLogic Level: 3.3V\u003c\/li\u003e\n\u003cli\u003eSupported Module: ESP-01 (8-pin header)\u003c\/li\u003e\n\u003cli\u003ePower Supply: 5V via USB\u003c\/li\u003e\n\u003cli\u003eDimensions: Approx. 45mm x 25mm\u003c\/li\u003e\n\u003cli\u003eLED Indicators: Power and data activity\u003c\/li\u003e\n\u003cli\u003eReset and Flash buttons onboard\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eCompatible with\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eESP-01 and ESP-01S WiFi modules\u003c\/li\u003e\n\u003cli\u003eArduino IDE (for firmware upload)\u003c\/li\u003e\n\u003cli\u003eESP8266-based development boards\u003c\/li\u003e\n\u003cli\u003eWindows, macOS, and Linux systems\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eWhat you can build with it\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eIoT sensor nodes – program ESP-01 to send temperature or humidity data to the cloud\u003c\/li\u003e\n\u003cli\u003eSmart home controllers – flash firmware for relay control via WiFi\u003c\/li\u003e\n\u003cli\u003eFirmware recovery – restore bricked ESP-01 modules using the onboard flash button\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eBuilt and Backed by Compoden\u003c\/h2\u003e\n\u003cp\u003eEvery purchase includes access to our AI build companion, delivered via QR code, email, or WhatsApp, to guide you through wiring and programming this downloader into a working project. With 10 years of experience supplying makers and institutions across India, Compoden ensures you get the right tools for your IoT builds. Pay your way: UPI or cards anywhere in India, plus COD if checkout offers it for your order.\u003c\/p\u003e\n\n\u003ch2\u003eFrequently Asked Questions\u003c\/h2\u003e\n\u003cdetails\u003e\n\u003csummary\u003eWhat is the ESP8266 ESP-01 Downloader LINK v1.0 used for?\u003c\/summary\u003e\n\u003cp\u003eIt is a USB-to-UART programmer that allows you to flash firmware onto ESP-01 WiFi modules. It includes reset and flash buttons for easy programming without additional wiring.\u003c\/p\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n\u003csummary\u003eWhat payment options are available for the ESP8266 ESP-01 Downloader LINK v1.0?\u003c\/summary\u003e\n\u003cp\u003eWe accept UPI, credit\/debit cards, and Cash on Delivery (COD) if checkout offers it for your order. All payments are processed securely.\u003c\/p\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n\u003csummary\u003eDoes this downloader come with a wireless module?\u003c\/summary\u003e\n\u003cp\u003eNo, this is the LINK v1.0 version without the wireless module. It is a programmer board only, designed to work with your existing ESP-01 module.\u003c\/p\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n\u003csummary\u003eHow long does delivery take?\u003c\/summary\u003e\n\u003cp\u003eWe ship the ESP8266 ESP-01 Downloader LINK v1.0 across India including Delhi, Mumbai, Bangalore, Hyderabad, Chennai, and Pune. Delivery takes 2-7 days after dispatch, depending on your location.\u003c\/p\u003e\n\u003c\/details\u003e\n\n","brand":"Compoden","offers":[{"title":"Default Title","offer_id":53492635992429,"sku":"CDN-2207","price":245.0,"currency_code":"INR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0999\/3997\/5533\/files\/esp8266-esp-01-wifi-module-downloader-link-v10-without-wireless-module-8810236.jpg?v=1785259627"},{"product_id":"neo-m8n-gps-module-with-ceramic-active-antenna","title":"NEO-M8N GPS Module with Ceramic Active Antenna","description":"\u003ch1\u003eNEO-M8N GPS Module with Ceramic Active Antenna\u003c\/h1\u003e\n\u003cp\u003eThe NEO-M8N GPS Module is a professional-grade GNSS receiver built on the u-blox M8 engine, featuring a ceramic active antenna for superior signal acquisition and tracking. It is designed for embedded systems engineers, drone and autonomous vehicle developers, and IoT solution architects who require reliable, centimeter-level positioning with low power consumption.\u003c\/p\u003e\n\n\u003ch2\u003eSpecifications\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eGNSS engine: u-blox M8 (72-channel)\u003c\/li\u003e\n\u003cli\u003eSupported constellations: GPS, GLONASS, Galileo, BeiDou\u003c\/li\u003e\n\u003cli\u003ePosition accuracy: 2.5 m CEP (autonomous), \u0026lt;2.5 m with SBAS\u003c\/li\u003e\n\u003cli\u003eTime-to-first-fix (cold start): \u0026lt;26 seconds\u003c\/li\u003e\n\u003cli\u003eUpdate rate: up to 10 Hz\u003c\/li\u003e\n\u003cli\u003eOperating voltage: 3.3V (onboard 3.3V regulator)\u003c\/li\u003e\n\u003cli\u003eInterface: UART (default 9600 baud)\u003c\/li\u003e\n\u003cli\u003eAntenna: integrated ceramic active antenna (gain 28 dB)\u003c\/li\u003e\n\u003cli\u003eModule dimensions: 25 x 25 x 7 mm\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eCompatible with\u003c\/h2\u003e\n\u003cp\u003eArduino Uno, Mega, Nano; ESP32; ESP8266; Raspberry Pi (any model); STM32; Teensy; and any microcontroller with a UART interface.\u003c\/p\u003e\n\n\u003ch2\u003eWhat you can build with it\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eAutonomous drone flight controller with real-time GPS waypoint navigation\u003c\/li\u003e\n\u003cli\u003eVehicle tracking system for fleet management or personal asset monitoring\u003c\/li\u003e\n\u003cli\u003ePrecision agriculture robot that logs field coordinates for automated spraying or mapping\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eBuilt and Backed by Compoden\u003c\/h2\u003e\n\u003cp\u003eEvery NEO-M8N GPS Module ships with a QR code that connects you to our AI build companion — it helps you wire, configure, and program this module into a working project via email or WhatsApp. With 10 years of supplying makers and institutions across India, we ensure you get genuine parts and reliable support. Pay your way: UPI or cards anywhere in India, plus COD if checkout offers it for your order.\u003c\/p\u003e\n\n\u003cdetails\u003e\n\u003csummary\u003eWhat is the difference between NEO-M8N and NEO-6M?\u003c\/summary\u003e\n\u003cp\u003eThe NEO-M8N supports multiple GNSS constellations (GPS, GLONASS, Galileo, BeiDou) for faster and more accurate positioning, while the NEO-6M is limited to GPS only. The M8N also offers higher update rates and better sensitivity.\u003c\/p\u003e\n\u003c\/details\u003e\n\n\u003cdetails\u003e\n\u003csummary\u003eWhat payment options are available for NEO-M8N GPS Module?\u003c\/summary\u003e\n\u003cp\u003eYou can pay via UPI, credit\/debit cards, or Cash on Delivery (COD) if checkout offers it for your order. All options are available across India.\u003c\/p\u003e\n\u003c\/details\u003e\n\n\u003cdetails\u003e\n\u003csummary\u003eHow long does delivery take?\u003c\/summary\u003e\n\u003cp\u003eWe ship NEO-M8N GPS Module across India including Delhi, Mumbai, Bangalore, Hyderabad, Chennai, and Pune. Delivery takes 2-7 days after dispatch, depending on your location.\u003c\/p\u003e\n\u003c\/details\u003e\n\n\u003cp\u003eBuy NEO-M8N GPS Module Online in India with UPI and cards, plus COD if checkout offers it for your order.\u003c\/p\u003e\n\n","brand":"Compoden","offers":[{"title":"Default Title","offer_id":53492637532525,"sku":"CDN-2260","price":1113.0,"currency_code":"INR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0999\/3997\/5533\/files\/neo-m8n-gps-module-with-ceramic-active-antenna-3744884.png?v=1785259569"},{"product_id":"sim808-bluetooth-compatible-gsm-gprs-gps-module","title":"SIM808 Bluetooth Compatible GSM\/GPRS\/GPS Module","description":"\u003ch1\u003eSIM808 Bluetooth Compatible GSM\/GPRS\/GPS Module\u003c\/h1\u003e\n\n\u003cp\u003eThe SIM808 is a compact quad-band GSM\/GPRS\/GPS module with integrated Bluetooth connectivity, designed for IoT applications requiring simultaneous voice, data, and location tracking capabilities. Professional engineers and IoT developers use this module to build GPS tracking systems, fleet management solutions, emergency alert systems, and remote monitoring devices that require cellular connectivity and real-time positioning.\u003c\/p\u003e\n\n\u003ch2\u003eSpecifications\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eQuad-band GSM\/GPRS: 850\/900\/1800\/1900 MHz\u003c\/li\u003e\n\u003cli\u003eGPS: GPS + GLONASS, tracking sensitivity -165 dBm\u003c\/li\u003e\n\u003cli\u003eBluetooth: Bluetooth 3.0 compliant\u003c\/li\u003e\n\u003cli\u003eInterface: UART (serial) communication\u003c\/li\u003e\n\u003cli\u003eSupply voltage: 3.4V – 4.4V\u003c\/li\u003e\n\u003cli\u003eDimensions: 30mm x 30mm x 3.2mm\u003c\/li\u003e\n\u003cli\u003eOperating temperature: -40°C to +85°C\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eCompatible with\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eArduino Uno, Mega, Nano\u003c\/li\u003e\n\u003cli\u003eESP32 and ESP8266\u003c\/li\u003e\n\u003cli\u003eRaspberry Pi (via USB-to-serial adapter)\u003c\/li\u003e\n\u003cli\u003eSTM32 microcontrollers\u003c\/li\u003e\n\u003cli\u003eAny 3.3V or 5V logic microcontroller with UART\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eWhat you can build with it\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eReal-time GPS vehicle tracker with SMS alerts\u003c\/li\u003e\n\u003cli\u003eBluetooth-enabled remote data logger for field monitoring\u003c\/li\u003e\n\u003cli\u003eEmergency SOS device with location sharing via GSM\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eBuilt and Backed by Compoden\u003c\/h2\u003e\n\u003cp\u003eEvery SIM808 module from Compoden includes access to our AI build companion — delivered via QR code, email, or WhatsApp — that helps you wire and program this module into a working project. With 10 years of experience supplying makers and institutions across India, we ensure you get genuine parts and reliable support. Pay your way: UPI or cards anywhere in India, plus COD if checkout offers it for your order.\u003c\/p\u003e\n\n\u003cdetails\u003e\n\u003csummary\u003eWhat is the supply voltage for the SIM808 module?\u003c\/summary\u003e\n\u003cp\u003eThe SIM808 requires a supply voltage between 3.4V and 4.4V. A 3.7V Li-Po battery or a regulated 4V supply is recommended. Do not connect directly to 5V.\u003c\/p\u003e\n\u003c\/details\u003e\n\n\u003cdetails\u003e\n\u003csummary\u003eWhat payment options are available for the SIM808 module?\u003c\/summary\u003e\n\u003cp\u003eWe accept UPI, all major credit and debit cards, and Cash on Delivery (COD) if checkout offers it for your order.\u003c\/p\u003e\n\u003c\/details\u003e\n\n\u003cdetails\u003e\n\u003csummary\u003eHow long does delivery take?\u003c\/summary\u003e\n\u003cp\u003eWe ship the SIM808 module across India including Delhi, Mumbai, Bangalore, Hyderabad, Chennai, and Pune. Delivery takes 2-7 days after dispatch, depending on your location.\u003c\/p\u003e\n\u003c\/details\u003e\n\n\n\n\u003cscript type=\"application\/ld+json\"\u003e\n{\n  \"@context\": \"https:\/\/schema.org\",\n  \"@type\": \"FAQPage\",\n  \"mainEntity\": [\n    {\n      \"@type\": \"Question\",\n      \"name\": \"What is the supply voltage for the SIM808 module?\",\n      \"acceptedAnswer\": {\n        \"@type\": \"Answer\",\n        \"text\": \"The SIM808 requires a supply voltage between 3.4V and 4.4V. A 3.7V Li-Po battery or a regulated 4V supply is recommended. Do not connect directly to 5V.\"\n      }\n    },\n    {\n      \"@type\": \"Question\",\n      \"name\": \"What payment options are available for the SIM808 module?\",\n      \"acceptedAnswer\": {\n        \"@type\": \"Answer\",\n        \"text\": \"We accept UPI, all major credit and debit cards, and Cash on Delivery (COD) if checkout offers it for your order.\"\n      }\n    },\n    {\n      \"@type\": \"Question\",\n      \"name\": \"How long does delivery take?\",\n      \"acceptedAnswer\": {\n        \"@type\": \"Answer\",\n        \"text\": \"We ship the SIM808 module across India including Delhi, Mumbai, Bangalore, Hyderabad, Chennai, and Pune. Delivery takes 2-7 days after dispatch, depending on your location.\"\n      }\n    }\n  ]\n}\n\u003c\/script\u003e","brand":"Compoden","offers":[{"title":"Default Title","offer_id":53492644282733,"sku":"CDN-2297","price":2095.0,"currency_code":"INR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0999\/3997\/5533\/files\/sim808-bluetooth-compatible-gsmgprsgps-module-1922909.jpg?v=1785259568"},{"product_id":"3-3v-adapter-board-for-24l01-wireless-module","title":"3.3V Adapter Board for 24L01 Wireless Module","description":"\u003ch1\u003e3.3V Adapter Board for NRF24L01 Wireless Module\u003c\/h1\u003e\n\u003cp\u003eThis 3.3V VCC Adapter Board lets you use NRF24L01 wireless transceiver modules on 5V systems like Arduino. It regulates the 3.3V input to 1.9~3.6V DC and includes bypass capacitors for stable operation. Ideal for makers and students integrating wireless communication into their projects.\u003c\/p\u003e\n\n\u003ch2\u003eSpecifications\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eInput voltage: 3.3V DC (from module)\u003c\/li\u003e\n\u003cli\u003eOutput voltage: 1.9~3.6V DC (regulated)\u003c\/li\u003e\n\u003cli\u003eInterface: 2-pin VCC\/GND input, compatible with NRF24L01 pinout\u003c\/li\u003e\n\u003cli\u003eIncludes bypass capacitors for noise filtering\u003c\/li\u003e\n\u003cli\u003eCompact PCB design for easy integration\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eCompatible with\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eArduino Uno, Mega, Nano, Leonardo\u003c\/li\u003e\n\u003cli\u003eESP32, ESP8266\u003c\/li\u003e\n\u003cli\u003eRaspberry Pi (via 3.3V GPIO)\u003c\/li\u003e\n\u003cli\u003eSTM32 boards\u003c\/li\u003e\n\u003cli\u003eAny 5V microcontroller system\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eWhat you can build with it\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eWireless sensor networks transmitting temperature or humidity data\u003c\/li\u003e\n\u003cli\u003eRemote control systems for robots or home automation\u003c\/li\u003e\n\u003cli\u003eTwo-way data communication between Arduino and a PC or another Arduino\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eBuilt and Backed by Compoden\u003c\/h2\u003e\n\u003cp\u003eEvery 3.3V Adapter Board comes with access to our AI build companion—delivered via QR code, email, or WhatsApp—that helps you wire and program this part into a working project. With 10 years of experience supplying makers and institutions across India, we ensure reliable components for your builds. Pay your way: UPI or cards anywhere in India, plus COD if checkout offers it for your order.\u003c\/p\u003e\n\n\u003cdetails\u003e\n\u003csummary\u003eWhat is the purpose of this adapter board?\u003c\/summary\u003e\n\u003cp\u003eIt regulates the 3.3V supply from an NRF24L01 module to a stable 1.9~3.6V DC, allowing the module to work reliably on 5V systems like Arduino without damage.\u003c\/p\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n\u003csummary\u003eWhat payment options are available for 3.3V Adapter Board for NRF24L01 Wireless Module?\u003c\/summary\u003e\n\u003cp\u003eWe accept UPI, all major credit\/debit cards, and Cash on Delivery (COD) if checkout offers it for your order.\u003c\/p\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n\u003csummary\u003eHow long does delivery take?\u003c\/summary\u003e\n\u003cp\u003eWe ship this adapter board across India including Delhi, Mumbai, Bangalore, Hyderabad, Chennai, and Pune. Delivery takes 2-7 days after dispatch, depending on your location.\u003c\/p\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n\u003csummary\u003eCan I use this with an ESP32?\u003c\/summary\u003e\n\u003cp\u003eYes, it works with ESP32 and ESP8266 boards when powered from a 3.3V source, though these boards already operate at 3.3V logic.\u003c\/p\u003e\n\u003c\/details\u003e\n\n","brand":"Compoden","offers":[{"title":"Default Title","offer_id":53492670857581,"sku":"CDN-2053","price":42.0,"currency_code":"INR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0999\/3997\/5533\/files\/33v-adapter-board-for-24l01-wireless-module-2776569.jpg?v=1785259478"},{"product_id":"esp-12f-esp-12e-serial-wifi-adapter-module-5v","title":"ESP-12F ESP-12E Serial WiFi Adapter Module 5V","description":"\u003ch1\u003eESP-12F ESP-12E Serial WiFi Adapter Module 5V\u003c\/h1\u003e\n\u003cp\u003eThis Serial WiFi Adapter Module lets you add wireless connectivity to your projects using the ESP-12F or ESP-12E chip. It operates at 5V logic, making it easy to interface with standard microcontrollers. Designed for makers and students building IoT applications.\u003c\/p\u003e\n\n\u003ch2\u003eSpecifications\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eLogic Level: 5V (onboard voltage regulator)\u003c\/li\u003e\n\u003cli\u003eInterface: UART (Serial)\u003c\/li\u003e\n\u003cli\u003eWiFi Standard: 802.11 b\/g\/n\u003c\/li\u003e\n\u003cli\u003eModule Compatibility: ESP-12F, ESP-12E\u003c\/li\u003e\n\u003cli\u003eOperating Voltage: 5V DC\u003c\/li\u003e\n\u003cli\u003eDimensions: Approximately 25mm x 15mm\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eCompatible with\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eArduino Uno, Mega, Nano\u003c\/li\u003e\n\u003cli\u003eESP32, ESP8266\u003c\/li\u003e\n\u003cli\u003eRaspberry Pi (via USB-to-Serial adapter)\u003c\/li\u003e\n\u003cli\u003eSTM32\u003c\/li\u003e\n\u003cli\u003eAny 5V logic microcontroller with UART\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eWhat you can build with it\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eWireless sensor nodes for home automation\u003c\/li\u003e\n\u003cli\u003eWiFi-enabled data loggers\u003c\/li\u003e\n\u003cli\u003eRemote control for appliances via smartphone\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eBuilt and Backed by Compoden\u003c\/h2\u003e\n\u003cp\u003eEvery module includes access to our AI build companion — delivered via QR, email, or WhatsApp — that helps you wire and program this part into a working project. With 10 years of experience supplying electronics to schools and engineering institutions across India, we ensure you get genuine parts and reliable support. Pay your way: UPI or cards anywhere in India, plus COD if checkout offers it for your order.\u003c\/p\u003e\n\n\u003cdetails\u003e\n\u003csummary\u003eWhat is the difference between ESP-12F and ESP-12E?\u003c\/summary\u003e\n\u003cp\u003eThe ESP-12F has a better antenna design for improved range compared to the ESP-12E. Both are compatible with this adapter module.\u003c\/p\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n\u003csummary\u003eHow do I program this module?\u003c\/summary\u003e\n\u003cp\u003eConnect it to your microcontroller via UART (TX\/RX). Use AT commands or flash custom firmware using an FTDI adapter. We provide wiring guides with your purchase.\u003c\/p\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n\u003csummary\u003eWhat payment options are available for ESP-12F ESP-12E Serial WiFi Adapter Module 5V?\u003c\/summary\u003e\n\u003cp\u003eYou can pay via UPI, debit\/credit cards, or Cash on Delivery (COD) if checkout offers it for your order. All options are available across India.\u003c\/p\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n\u003csummary\u003eHow long does delivery take?\u003c\/summary\u003e\n\u003cp\u003eWe ship across India including Delhi, Mumbai, Bangalore, Hyderabad, Chennai, and Pune. Delivery takes 2-7 days after dispatch, depending on your location.\u003c\/p\u003e\n\u003c\/details\u003e\n\n","brand":"Compoden","offers":[{"title":"Default Title","offer_id":53492672102765,"sku":"CDN-2202","price":183.0,"currency_code":"INR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0999\/3997\/5533\/files\/esp-12f-esp-12e-serial-wifi-adapter-module-5v-7623105.png?v=1785259475"},{"product_id":"elm-327-v2-1-obdii-bluetooth-interface-auto-car-diagnostic-scanner-module","title":"ELM 327 V2.1 OBDII Bluetooth Interface Auto Car Diagnostic Scanner Module","description":"\u003ch1\u003eELM 327 V2.1 OBDII Bluetooth Interface Auto Car Diagnostic Scanner Module\u003c\/h1\u003e\n\u003cp\u003eThe ELM327 V2.1 is a compact Bluetooth OBDII interface module that connects to your car's OBDII port to read and clear diagnostic trouble codes from the ECU. It works with mobile apps on Android and iOS, making it ideal for DIY car enthusiasts, mechanics, and automotive hobbyists.\u003c\/p\u003e\n\n\u003ch2\u003eSpecifications\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eInterface: Bluetooth 2.0 (SPP)\u003c\/li\u003e\n\u003cli\u003eProtocol: OBDII (SAE J1850 PWM, J1850 VPW, ISO 9141-2, ISO 14230-4, ISO 15765-4 CAN)\u003c\/li\u003e\n\u003cli\u003eOperating voltage: 12V DC (from vehicle OBDII port)\u003c\/li\u003e\n\u003cli\u003eCompliance: ELM327 V2.1 command set\u003c\/li\u003e\n\u003cli\u003eDimensions: Approximately 45mm x 25mm x 15mm\u003c\/li\u003e\n\u003cli\u003eConnector: OBDII 16-pin male\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eCompatible with\u003c\/h2\u003e\n\u003cp\u003eArduino (via UART), ESP32, ESP8266, Raspberry Pi, STM32, and any platform with a Bluetooth serial interface. Also works with Android and iOS apps like Torque, Car Scanner, and OBD Auto Doctor.\u003c\/p\u003e\n\n\u003ch2\u003eWhat you can build with it\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eReal-time car dashboard displaying RPM, speed, coolant temperature, and fuel economy on a smartphone or LCD.\u003c\/li\u003e\n\u003cli\u003eAutomated fault code logger for fleet vehicles or personal car maintenance tracking.\u003c\/li\u003e\n\u003cli\u003eWireless OBDII data logger for performance tuning or fuel consumption analysis.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eBuilt and Backed by Compoden\u003c\/h2\u003e\n\u003cp\u003eEvery ELM327 module from Compoden comes with an AI build companion delivered via QR code, email, or WhatsApp — it helps you wire and program this part into a working project. With 10 years of experience supplying makers, schools, and engineering institutions across India, we ensure you get genuine parts and reliable support. Pay your way: UPI or cards anywhere in India, plus COD if checkout offers it for your order.\u003c\/p\u003e\n\n\u003cdetails\u003e\n\u003csummary\u003eWhat cars are compatible with this ELM327 V2.1?\u003c\/summary\u003e\n\u003cp\u003eIt works with most petrol cars sold in India after 2005 that are OBDII compliant. Diesel cars may have limited support. Check your vehicle's OBDII port location before purchase.\u003c\/p\u003e\n\u003c\/details\u003e\n\n\u003cdetails\u003e\n\u003csummary\u003eWhat payment options are available for ELM327 V2.1?\u003c\/summary\u003e\n\u003cp\u003eWe accept UPI, all major credit\/debit cards, and Cash on Delivery (COD) if checkout offers it for your order.\u003c\/p\u003e\n\u003c\/details\u003e\n\n\u003cdetails\u003e\n\u003csummary\u003eHow do I use this module with an Arduino?\u003c\/summary\u003e\n\u003cp\u003eConnect the module's TX, RX, VCC (5V), and GND pins to your Arduino. Use a voltage divider on the RX line if needed. Then upload an OBDII library sketch to communicate with the car's ECU.\u003c\/p\u003e\n\u003c\/details\u003e\n\n\u003cdetails\u003e\n\u003csummary\u003eWhat is the delivery time for this product?\u003c\/summary\u003e\n\u003cp\u003eWe ship ELM327 V2.1 across India including Delhi, Mumbai, Bangalore, Hyderabad, Chennai, and Pune. Dispatch time: 3-7 days. Delivery takes 2-7 days after dispatch, depending on your location.\u003c\/p\u003e\n\u003c\/details\u003e\n\n\u003cp\u003eBuy ELM327 V2.1 Online in India with UPI and cards, plus COD if checkout offers it for your order.\u003c\/p\u003e\n\n","brand":"Compoden","offers":[{"title":"Default Title","offer_id":53492673544557,"sku":"CDN-2197","price":418.0,"currency_code":"INR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0999\/3997\/5533\/files\/elm-327-v21-obdii-bluetooth-interface-auto-car-diagnostic-scanner-module-5596033.jpg?v=1785259421"},{"product_id":"3-2dbi-2-4ghz-rp-sma-female-omni-directional-antenna-for-wifi-modules","title":"3.2dBi 2.4GHz RP-SMA Female Omni Directional Antenna for WiFi Modules","description":"\u003ch1\u003e3.2dBi 2.4GHz RP-SMA Female Omni Directional Antenna for WiFi Modules\u003c\/h1\u003e\n\n\u003cp\u003eThe 3.2dBi 2.4GHz RP-SMA Female Omni Antenna is a high-performance antenna designed to enhance the wireless connectivity of WiFi modules operating in the 2.4GHz frequency range. With its Reverse Polarity SMA (RP-SMA) Female connector, this omni-directional antenna provides a versatile and efficient solution for improving signal strength and coverage in WiFi projects. It is ideal for makers, students, and engineers building wireless IoT applications.\u003c\/p\u003e\n\n\u003ch2\u003eSpecifications\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eFrequency Range: 2.4GHz (2.4–2.5GHz)\u003c\/li\u003e\n\u003cli\u003eGain: 3.2dBi\u003c\/li\u003e\n\u003cli\u003eConnector Type: RP-SMA Female\u003c\/li\u003e\n\u003cli\u003eRadiation Pattern: Omni-directional\u003c\/li\u003e\n\u003cli\u003eImpedance: 50 Ohms\u003c\/li\u003e\n\u003cli\u003ePolarization: Linear, Vertical\u003c\/li\u003e\n\u003cli\u003eCable Length: 15cm (approx.)\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eCompatible with\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eESP32 and ESP8266 development boards\u003c\/li\u003e\n\u003cli\u003eArduino WiFi shields and modules (e.g., ESP-01, NodeMCU)\u003c\/li\u003e\n\u003cli\u003eRaspberry Pi with USB WiFi adapters using RP-SMA\u003c\/li\u003e\n\u003cli\u003eSTM32-based WiFi modules\u003c\/li\u003e\n\u003cli\u003eAny 2.4GHz WiFi module with RP-SMA Female connector\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eWhat you can build with it\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eExtended-range IoT sensor nodes for home automation\u003c\/li\u003e\n\u003cli\u003eLong-distance WiFi bridge for remote data logging\u003c\/li\u003e\n\u003cli\u003eHigh-gain WiFi repeater or access point for workshops\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eBuilt and Backed by Compoden\u003c\/h2\u003e\n\u003cp\u003eThis antenna comes with an AI build companion delivered via QR, email, or WhatsApp to help you wire and program it into a working WiFi project. With 10 years of experience supplying makers and institutions across India, Compoden ensures reliable components for every build. Pay your way: UPI or cards anywhere in India, plus COD if checkout offers it for your order.\u003c\/p\u003e\n\n\u003cdetails\u003e\n\u003csummary\u003eWhat is the difference between RP-SMA and standard SMA?\u003c\/summary\u003e\n\u003cp\u003eRP-SMA (Reverse Polarity SMA) has the center pin reversed compared to standard SMA. This antenna uses RP-SMA Female, which has a center hole, designed to mate with RP-SMA Male connectors (center pin) commonly found on WiFi modules.\u003c\/p\u003e\n\u003c\/details\u003e\n\n\u003cdetails\u003e\n\u003csummary\u003eWhat payment options are available for this antenna?\u003c\/summary\u003e\n\u003cp\u003eWe accept UPI, all major credit\/debit cards, and Cash on Delivery (COD) if checkout offers it for your order. Choose your preferred method at checkout.\u003c\/p\u003e\n\u003c\/details\u003e\n\n\u003cdetails\u003e\n\u003csummary\u003eHow long does delivery take?\u003c\/summary\u003e\n\u003cp\u003eWe ship this antenna across India including Delhi, Mumbai, Bangalore, Hyderabad, Chennai, and Pune. Delivery takes 2-7 days after dispatch, depending on your location.\u003c\/p\u003e\n\u003c\/details\u003e\n\n\u003cp\u003eBuy 3.2dBi 2.4GHz RP-SMA Female Omni Directional Antenna for WiFi Modules online in India with UPI and cards, plus COD if checkout offers it for your order.\u003c\/p\u003e\n\n","brand":"Compoden","offers":[{"title":"Default Title","offer_id":53492678558061,"sku":"CDN-2052","price":201.0,"currency_code":"INR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0999\/3997\/5533\/files\/32dbi-24ghz-rp-sma-female-omni-directional-antenna-for-wifi-modules-9128454.jpg?v=1785259415"},{"product_id":"2dbi-gain-2-4ghz-wifi-antenna-with-10cm-ufl-to-sma-cable","title":"2dBi Gain 2.4GHz Wifi Antenna With 10cm UFL to SMA Cable","description":"\u003ch1\u003e2dBi Gain 2.4GHz Wifi Antenna With 10cm UFL to SMA Cable\u003c\/h1\u003e\n\u003cp\u003eThis 2dBi gain 2.4GHz WiFi antenna comes with a 10cm UFL (IPX) to SMA cable, designed to boost wireless range for compact boards like the Raspberry Pi Zero W and ESP8266. It is a plug-and-play accessory for makers and engineers needing reliable indoor WiFi connectivity.\u003c\/p\u003e\n\n\u003ch2\u003eSpecifications\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eFrequency: 2.4GHz (900\/1800 MHz also supported)\u003c\/li\u003e\n\u003cli\u003eGain: 2dBi (less than 3 dB)\u003c\/li\u003e\n\u003cli\u003eVSWR: less than 1.5\u003c\/li\u003e\n\u003cli\u003eConnector: IPX female to SMA-KY (male)\u003c\/li\u003e\n\u003cli\u003eCable length: 10 cm\u003c\/li\u003e\n\u003cli\u003eMaterial: Polyurethane (flexible)\u003c\/li\u003e\n\u003cli\u003eApplication: Indoor use\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eCompatible with\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eRaspberry Pi Zero W \/ Zero 2 W\u003c\/li\u003e\n\u003cli\u003eESP8266 (NodeMCU, Wemos D1 Mini)\u003c\/li\u003e\n\u003cli\u003eESP32 development boards\u003c\/li\u003e\n\u003cli\u003eAny device with a UFL\/IPX WiFi antenna connector\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eWhat you can build with it\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eExtend WiFi range for a home automation sensor node using ESP8266\u003c\/li\u003e\n\u003cli\u003eImprove signal strength for a Raspberry Pi Zero W-based security camera\u003c\/li\u003e\n\u003cli\u003eUpgrade connectivity for a portable IoT weather station\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eBuilt and Backed by Compoden\u003c\/h2\u003e\n\u003cp\u003eCompoden has been supplying electronics components to makers and institutions across India for over 10 years. Every antenna purchase includes access to our AI build companion — delivered via QR, email, or WhatsApp — to help you wire and program this part into a working project. Pay your way: UPI or cards anywhere in India, plus COD if checkout offers it for your order.\u003c\/p\u003e\n\n\u003cdetails\u003e\n\u003csummary\u003eWhat is the difference between UFL and IPX connectors?\u003c\/summary\u003e\n\u003cp\u003eUFL and IPX are essentially the same miniature coaxial connector type used on compact WiFi modules. This antenna uses an IPX female connector, which is compatible with standard UFL ports on boards like the Raspberry Pi Zero W.\u003c\/p\u003e\n\u003c\/details\u003e\n\n\u003cdetails\u003e\n\u003csummary\u003eWhat payment options are available for this antenna?\u003c\/summary\u003e\n\u003cp\u003eYou can pay using UPI, credit\/debit cards, or Cash on Delivery (COD) if checkout offers it for your order. All options are available across India.\u003c\/p\u003e\n\u003c\/details\u003e\n\n\u003cdetails\u003e\n\u003csummary\u003eHow do I connect this antenna to my ESP8266?\u003c\/summary\u003e\n\u003cp\u003eMost ESP8266 boards (like NodeMCU) have a UFL connector near the antenna area. Simply plug the IPX end of the cable into the board, then screw the SMA antenna onto the cable. Ensure the board's onboard antenna is disabled in software if required.\u003c\/p\u003e\n\u003c\/details\u003e\n\n\u003cp\u003eBuy 2dBi Gain 2.4GHz Wifi Antenna Online in India with UPI and cards, plus COD if checkout offers it for your order.\u003c\/p\u003e\n\n","brand":"Compoden","offers":[{"title":"Default Title","offer_id":53492680950125,"sku":"CDN-2051","price":107.0,"currency_code":"INR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0999\/3997\/5533\/files\/2dbi-gain-24ghz-wifi-antenna-with-10cm-ufl-to-sma-cable-1375844.jpg?v=1785259416"},{"product_id":"wifi-usb-150m-dongle-compliant-with-raspbian-edup","title":"WiFi USB 150M Dongle Compliant With Raspbian - EDUP","description":"\u003ch1\u003eWiFi USB 150M Dongle Compliant With Raspbian - EDUP\u003c\/h1\u003e\n\n\u003cp\u003eThe EDUP WiFi USB 150M Dongle is a compact wireless networking adapter designed specifically for Raspberry Pi and Linux-based single-board computers, delivering 150Mbps data transmission rates over the 2.4GHz frequency band. This device is essential for embedded systems engineers, IoT developers, and hobbyists who require reliable WiFi connectivity on resource-constrained platforms where traditional networking infrastructure is unavailable or impractical.\u003c\/p\u003e\n\n\u003ch2\u003eSpecifications\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eWireless Standard: IEEE 802.11b\/g\/n\u003c\/li\u003e\n\u003cli\u003eFrequency Band: 2.4GHz\u003c\/li\u003e\n\u003cli\u003eMaximum Data Rate: 150Mbps\u003c\/li\u003e\n\u003cli\u003eInterface: USB 2.0\u003c\/li\u003e\n\u003cli\u003eChipset: Realtek RTL8188EU\u003c\/li\u003e\n\u003cli\u003eAntenna: Internal PCB antenna\u003c\/li\u003e\n\u003cli\u003eDimensions: 18.6mm x 14.5mm x 6.1mm\u003c\/li\u003e\n\u003cli\u003eWeight: 2g\u003c\/li\u003e\n\u003cli\u003eOperating Systems: Raspbian, Ubuntu, Debian, Kali Linux, Windows 7\/8\/10\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eCompatible with\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eRaspberry Pi 3 Model B+\u003c\/li\u003e\n\u003cli\u003eRaspberry Pi 4 Model B\u003c\/li\u003e\n\u003cli\u003eRaspberry Pi Zero W\u003c\/li\u003e\n\u003cli\u003eRaspberry Pi 400\u003c\/li\u003e\n\u003cli\u003eOrange Pi\u003c\/li\u003e\n\u003cli\u003eBanana Pi\u003c\/li\u003e\n\u003cli\u003eASUS Tinker Board\u003c\/li\u003e\n\u003cli\u003eAny Linux-based single-board computer with USB port\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eWhat you can build with it\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eWireless sensor network node: Connect temperature, humidity, or motion sensors to a Raspberry Pi and stream data over WiFi to a central server or cloud dashboard.\u003c\/li\u003e\n\u003cli\u003ePortable media server: Turn a Raspberry Pi into a wireless media streamer using Kodi or Plex, accessing files from any device on the network.\u003c\/li\u003e\n\u003cli\u003eRemote surveillance camera: Build a low-cost IP camera with a Raspberry Pi Camera Module and stream live video over WiFi to your smartphone.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eBuilt and Backed by Compoden\u003c\/h2\u003e\n\u003cp\u003eEvery EDUP WiFi USB 150M Dongle ships with access to our AI build companion — delivered via QR code, email, or WhatsApp — that guides you through wiring and programming this adapter into a working project. With 10 years of experience supplying makers, schools, and engineering institutions across India, we ensure every component meets the needs of real-world builds. Pay your way: UPI or cards anywhere in India, plus COD if checkout offers it for your order.\u003c\/p\u003e\n\n\u003cdetails\u003e\n\u003csummary\u003eWhat is the chipset used in this EDUP WiFi dongle?\u003c\/summary\u003e\n\u003cp\u003eThis dongle uses the Realtek RTL8188EU chipset, which is widely supported in Raspbian and most Linux distributions without additional driver installation.\u003c\/p\u003e\n\u003c\/details\u003e\n\n\u003cdetails\u003e\n\u003csummary\u003eHow do I install the EDUP WiFi dongle on Raspberry Pi?\u003c\/summary\u003e\n\u003cp\u003ePlug the dongle into a USB port on your Raspberry Pi running Raspbian. The system should automatically detect and configure the adapter. If needed, run \u003ccode\u003esudo apt-get update \u0026amp;\u0026amp; sudo apt-get install firmware-realtek\u003c\/code\u003e to ensure drivers are present.\u003c\/p\u003e\n\u003c\/details\u003e\n\n\u003cdetails\u003e\n\u003csummary\u003eWhat payment options are available for WiFi USB 150M Dongle?\u003c\/summary\u003e\n\u003cp\u003eYou can pay using UPI, credit\/debit cards, or Cash on Delivery (COD) if checkout offers it for your order. All payment methods are available across India.\u003c\/p\u003e\n\u003c\/details\u003e\n\n\u003cdetails\u003e\n\u003csummary\u003eHow long does delivery take for this WiFi dongle?\u003c\/summary\u003e\n\u003cp\u003eWe ship EDUP WiFi USB 150M Dongle across India including Delhi, Mumbai, Bangalore, Hyderabad, Chennai, and Pune. Delivery takes 2-7 days after dispatch, depending on your location.\u003c\/p\u003e\n\u003c\/details\u003e\n\n","brand":"EDUP","offers":[{"title":"Default Title","offer_id":53492682522989,"sku":"CDN-2335","price":1377.0,"currency_code":"INR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0999\/3997\/5533\/files\/wifi-usb-150m-dongle-compliant-with-raspbian-edup-4385033.jpg?v=1785259414"},{"product_id":"wifi-bluetooth-usb-mini-wireless-dongle","title":"Wifi + Bluetooth USB Mini Wireless Dongle","description":"\u003ch1\u003eWiFi + Bluetooth USB Mini Wireless Dongle\u003c\/h1\u003e\n\n\u003cp\u003eThe WiFi + Bluetooth USB Mini Wireless Dongle is a compact dual-function adapter that brings 802.11ac WiFi and Bluetooth 4.0\/5.0 connectivity to any desktop or laptop via a single USB port. Electronics engineers, IoT developers, and system integrators use this dongle to add modern wireless standards to legacy computers without internal hardware changes.\u003c\/p\u003e\n\n\u003ch2\u003eSpecifications\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eWireless Standard: 802.11ac (dual-band 2.4GHz \/ 5GHz)\u003c\/li\u003e\n\u003cli\u003eBluetooth Version: 4.0 (some variants support 5.0 — check product listing)\u003c\/li\u003e\n\u003cli\u003eInterface: USB 2.0 \/ 3.0 compatible\u003c\/li\u003e\n\u003cli\u003eForm Factor: Mini USB dongle, plug-and-play\u003c\/li\u003e\n\u003cli\u003eDriver Support: Windows, Linux (driver installation may be required)\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eCompatible with\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eDesktop PCs and laptops running Windows 7\/8\/10\/11\u003c\/li\u003e\n\u003cli\u003eLinux-based systems (Ubuntu, Debian, Raspberry Pi OS with driver setup)\u003c\/li\u003e\n\u003cli\u003eSingle-board computers like Raspberry Pi (USB host required)\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eWhat you can build with it\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eAdd WiFi and Bluetooth to a headless server or media centre for remote control and streaming\u003c\/li\u003e\n\u003cli\u003eEnable wireless firmware updates and data logging for IoT sensor nodes connected to a PC\u003c\/li\u003e\n\u003cli\u003eCreate a portable wireless hotspot or Bluetooth file-sharing station for field deployments\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eBuilt and Backed by Compoden\u003c\/h2\u003e\n\u003cp\u003eEvery WiFi + Bluetooth USB Mini Wireless Dongle ships with access to our AI build companion — delivered via QR code, email, or WhatsApp — that helps you install drivers and integrate the dongle into your project. With 10 years of supplying electronics to makers, schools, and engineering institutions across India, we ensure you get genuine parts and reliable support. Pay your way: UPI or cards anywhere in India, plus COD if checkout offers it for your order.\u003c\/p\u003e\n\n\u003cdetails\u003e\n\u003csummary\u003eWhat drivers are needed for this dongle?\u003c\/summary\u003e\n\u003cp\u003eMost Windows systems auto-detect the dongle. For Linux, you may need to install drivers for the Realtek or MediaTek chipset (check the product listing for the exact chip). Our AI build companion can guide you through the process.\u003c\/p\u003e\n\u003c\/details\u003e\n\n\u003cdetails\u003e\n\u003csummary\u003eCan I use WiFi and Bluetooth at the same time?\u003c\/summary\u003e\n\u003cp\u003eYes, the dongle supports simultaneous WiFi and Bluetooth operation. However, performance may vary depending on USB port bandwidth and driver implementation.\u003c\/p\u003e\n\u003c\/details\u003e\n\n\u003cdetails\u003e\n\u003csummary\u003eWhat payment options are available for the WiFi + Bluetooth USB Mini Wireless Dongle?\u003c\/summary\u003e\n\u003cp\u003eYou can pay using UPI, debit\/credit cards, or Cash on Delivery (COD) if checkout offers it for your order. All options are available across India.\u003c\/p\u003e\n\u003c\/details\u003e\n\n\u003cdetails\u003e\n\u003csummary\u003eHow long does delivery take?\u003c\/summary\u003e\n\u003cp\u003eWe ship the WiFi + Bluetooth USB Mini Wireless Dongle across India including Delhi, Mumbai, Bangalore, Hyderabad, Chennai, and Pune. Delivery takes 2-7 days after dispatch, depending on your location.\u003c\/p\u003e\n\u003c\/details\u003e\n\n\u003cp style=\"margin-top:20px;\"\u003eBuy the WiFi + Bluetooth USB Mini Wireless Dongle Online in India with UPI and cards, plus COD if checkout offers it for your order.\u003c\/p\u003e\n\n","brand":"Compoden","offers":[{"title":"Default Title","offer_id":53492682817901,"sku":"CDN-2329","price":1349.0,"currency_code":"INR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0999\/3997\/5533\/files\/wifi-bluetooth-usb-mini-wireless-dongle-8650656.jpg?v=1785259414"},{"product_id":"wifi-usb-150m-dongle-compliant-with-raspbian-ubuntu-android","title":"WiFi USB 150M Dongle Compliant With Raspbian Ubuntu Android","description":"\u003ch1\u003eWiFi USB 150M Dongle – Compatible with Raspbian, Ubuntu \u0026amp; Android\u003c\/h1\u003e\n\nThe WiFi USB 150M Dongle is a compact wireless networking adapter that delivers 150Mbps data transmission speeds, enabling seamless internet connectivity for single-board computers, embedded systems, and IoT devices. Electronics engineers, hobbyists, and system integrators rely on this dongle to add WiFi capabilities to Raspberry Pi, BeagleBone, and Linux-based platforms without requiring additional hardware modifications.\n\n\u003ch2\u003eSpecifications\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eWireless standard: IEEE 802.11b\/g\/n\u003c\/li\u003e\n\u003cli\u003eData transfer rate: up to 150Mbps\u003c\/li\u003e\n\u003cli\u003eInterface: USB 2.0 (backward compatible with USB 1.1)\u003c\/li\u003e\n\u003cli\u003eFrequency band: 2.4GHz\u003c\/li\u003e\n\u003cli\u003eSupported OS: Raspbian, Ubuntu, Android, Windows, macOS\u003c\/li\u003e\n\u003cli\u003eAntenna: built-in\u003c\/li\u003e\n\u003cli\u003eDimensions: approximately 18mm x 15mm x 6mm\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eCompatible with\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eRaspberry Pi (all models with USB port)\u003c\/li\u003e\n\u003cli\u003eRaspberry Pi Zero \/ Zero W (via OTG adapter)\u003c\/li\u003e\n\u003cli\u003eBeagleBone Black \/ PocketBeagle\u003c\/li\u003e\n\u003cli\u003eOrange Pi, Banana Pi, and other Linux SBCs\u003c\/li\u003e\n\u003cli\u003eAndroid TV boxes and tablets with USB-OTG\u003c\/li\u003e\n\u003cli\u003eUbuntu \/ Debian \/ Fedora desktops and servers\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eWhat you can build with it\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eWireless sensor node: connect an Arduino or ESP32 to the internet via a Raspberry Pi gateway\u003c\/li\u003e\n\u003cli\u003ePortable media server: stream movies from a Raspberry Pi running OSMC or Kodi\u003c\/li\u003e\n\u003cli\u003eRemote surveillance camera: add WiFi to a USB camera module for live streaming\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eBuilt and Backed by Compoden\u003c\/h2\u003e\n\u003cp\u003eEvery WiFi USB 150M Dongle ships with access to our AI build companion — delivered via QR code, email, or WhatsApp — that guides you through wiring and configuring the dongle into a working project. With 10 years of supplying makers and institutions across India, we ensure you get a reliable component and the support to make it work. Pay your way: UPI or cards anywhere in India, plus COD if checkout offers it for your order.\u003c\/p\u003e\n\n\u003cdetails\u003e\n\u003csummary\u003eWhat payment options are available for the WiFi USB 150M Dongle?\u003c\/summary\u003e\n\u003cp\u003eYou can pay via UPI, credit\/debit cards, or Cash on Delivery (COD) if checkout offers it for your order. All payment options are available across India.\u003c\/p\u003e\n\u003c\/details\u003e\n\n\u003cdetails\u003e\n\u003csummary\u003eHow do I install this dongle on Raspberry Pi OS?\u003c\/summary\u003e\n\u003cp\u003ePlug the dongle into a USB port on your Raspberry Pi. Most modern Raspberry Pi OS builds include the driver automatically. If not detected, run \u003ccode\u003esudo apt update \u0026amp;\u0026amp; sudo apt install firmware-ralink\u003c\/code\u003e and reboot.\u003c\/p\u003e\n\u003c\/details\u003e\n\n\u003cdetails\u003e\n\u003csummary\u003eDoes this dongle work with Android TV?\u003c\/summary\u003e\n\u003cp\u003eYes, it works with Android TV boxes and tablets that support USB-OTG and have a USB host port. Plug it in and enable WiFi in settings.\u003c\/p\u003e\n\u003c\/details\u003e\n\n\u003cdetails\u003e\n\u003csummary\u003eWhat is the delivery time for this WiFi dongle?\u003c\/summary\u003e\n\u003cp\u003eWe ship the WiFi USB 150M Dongle across India including Delhi, Mumbai, Bangalore, Hyderabad, Chennai, and Pune. Delivery takes 2-7 days after dispatch, depending on your location.\u003c\/p\u003e\n\u003c\/details\u003e\n\n\u003cp\u003eBuy the WiFi USB 150M Dongle online in India with UPI and cards, plus COD if checkout offers it for your order.\u003c\/p\u003e\n\n","brand":"Compoden","offers":[{"title":"Default Title","offer_id":53492682981741,"sku":"CDN-2336","price":1570.0,"currency_code":"INR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0999\/3997\/5533\/files\/wifi-usb-150m-dongle-compliant-with-raspbian-ubuntu-android-5267046.jpg?v=1785259414"},{"product_id":"gsm-sim800c-modem-with-antenna","title":"GSM SIM800C Modem with Antenna","description":"\u003ch1\u003eGSM SIM800C Modem with Antenna\u003c\/h1\u003e\n\n\u003cp\u003eThe GSM SIM800C Modem is a compact, quad-band cellular module that enables seamless 2G GSM\/GPRS connectivity for embedded systems and IoT applications. Electronics engineers, IoT developers, and embedded systems professionals use this modem to add remote communication capabilities to their projects without complex integration.\u003c\/p\u003e\n\n\u003ch2\u003eSpecifications\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eQuad-band: 850\/900\/1800\/1900 MHz\u003c\/li\u003e\n\u003cli\u003eGPRS multi-slot class 12\u003c\/li\u003e\n\u003cli\u003eSupply voltage: 3.4V – 4.4V\u003c\/li\u003e\n\u003cli\u003eInterface: UART (TTL logic level)\u003c\/li\u003e\n\u003cli\u003eSupports SMS, voice calls, and TCP\/UDP data transfer\u003c\/li\u003e\n\u003cli\u003eIntegrated antenna connector with included antenna\u003c\/li\u003e\n\u003cli\u003eDimensions: 25mm x 25mm x 3mm (module only)\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eCompatible with\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eArduino (Uno, Mega, Nano)\u003c\/li\u003e\n\u003cli\u003eESP32 and ESP8266\u003c\/li\u003e\n\u003cli\u003eRaspberry Pi (via USB-to-UART adapter)\u003c\/li\u003e\n\u003cli\u003eSTM32 and other 3.3V\/5V microcontrollers\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eWhat you can build with it\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eRemote SMS-based control system for home appliances or irrigation\u003c\/li\u003e\n\u003cli\u003eGPS tracker with real-time location reporting over GPRS\u003c\/li\u003e\n\u003cli\u003eIoT data logger that transmits sensor readings to a cloud server\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eBuilt and Backed by Compoden\u003c\/h2\u003e\n\u003cp\u003eWith 10 years of experience supplying makers and institutions across India, Compoden includes an AI build companion with every component. Scan the QR code or email us to get wiring diagrams and sample code for your SIM800C project. Pay your way: UPI or cards anywhere in India, plus COD if checkout offers it for your order.\u003c\/p\u003e\n\n\u003cdetails\u003e\n\u003csummary\u003eWhat is the difference between SIM800C and SIM800L?\u003c\/summary\u003e\n\u003cp\u003eThe SIM800C is a more compact module with an integrated antenna connector, while the SIM800L requires an external antenna soldered directly. Both support quad-band GSM\/GPRS.\u003c\/p\u003e\n\u003c\/details\u003e\n\n\u003cdetails\u003e\n\u003csummary\u003eWhat payment options are available for GSM SIM800C Modem?\u003c\/summary\u003e\n\u003cp\u003eWe accept UPI, all major credit\/debit cards, and Cash on Delivery (COD) if checkout offers it for your order.\u003c\/p\u003e\n\u003c\/details\u003e\n\n\u003cdetails\u003e\n\u003csummary\u003eHow long does delivery take?\u003c\/summary\u003e\n\u003cp\u003eWe ship GSM SIM800C Modem across India including Delhi, Mumbai, Bangalore, Hyderabad, Chennai, and Pune. Delivery takes 2-7 days after dispatch, depending on your location.\u003c\/p\u003e\n\u003c\/details\u003e\n\n","brand":"Compoden","offers":[{"title":"Default Title","offer_id":53492683014509,"sku":"CDN-2226","price":1334.0,"currency_code":"INR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0999\/3997\/5533\/files\/gsm-sim800c-modem-with-antenna-5008614.jpg?v=1785259413"},{"product_id":"sim800c-gprs-gsm-shield-with-antenna","title":"Sim800C GPRS\/GSM Shield with Antenna","description":"\u003ch1\u003eSim800C GPRS\/GSM Shield with Antenna\u003c\/h1\u003e\n\n\u003cp\u003eThe Sim800C GPRS\/GSM Shield is a compact cellular communication module that enables Arduino and microcontroller-based projects to connect to 2G GSM networks for SMS, voice calls, and GPRS data transmission. IoT developers, embedded systems engineers, and hardware enthusiasts use this shield to build remote monitoring systems, telemetry devices, and IoT applications that require cellular connectivity without relying on WiFi infrastructure.\u003c\/p\u003e\n\n\u003ch2\u003eSpecifications\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eQuad-band 850\/900\/1800\/1900 MHz – works on 2G GSM networks in India\u003c\/li\u003e\n\u003cli\u003eGPRS multi-slot class 12\/10, max data rate 85.6 kbps (downlink\/uplink)\u003c\/li\u003e\n\u003cli\u003eSupports SMS, voice calls, and TCP\/UDP\/HTTP\/FTP data transfer\u003c\/li\u003e\n\u003cli\u003eLogic level: 3.3V to 5V (onboard voltage regulator)\u003c\/li\u003e\n\u003cli\u003eInterface: UART (serial) via AT commands\u003c\/li\u003e\n\u003cli\u003eAntenna: included with SMA connector\u003c\/li\u003e\n\u003cli\u003eBoard dimensions: approximately 68mm x 53mm\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eCompatible with\u003c\/h2\u003e\n\u003cp\u003eArduino Uno, Arduino Mega, Arduino Leonardo, ESP32, ESP8266, Raspberry Pi (via USB-to-serial adapter), STM32, and any 3.3V\/5V microcontroller with a UART interface.\u003c\/p\u003e\n\n\u003ch2\u003eWhat you can build with it\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eRemote SMS-based control system for switching appliances on\/off from anywhere\u003c\/li\u003e\n\u003cli\u003eGPS + GSM tracker for vehicle or asset location reporting\u003c\/li\u003e\n\u003cli\u003eIoT weather station that sends sensor data to a cloud dashboard via GPRS\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eBuilt and Backed by Compoden\u003c\/h2\u003e\n\u003cp\u003eEvery Sim800C GPRS\/GSM Shield ships with access to our AI build companion — delivered via QR code, email, or WhatsApp — that helps you wire and program this part into a working project. With 10 years of experience supplying makers, schools, and engineering institutions across India, we ensure you get genuine parts and reliable support. Pay your way: UPI or cards anywhere in India, plus COD if checkout offers it for your order.\u003c\/p\u003e\n\n\u003cdetails\u003e\n\u003csummary\u003eWhat is the operating voltage of this shield?\u003c\/summary\u003e\n\u003cp\u003eThe shield operates at 3.3V logic level but includes an onboard voltage regulator, making it compatible with both 3.3V and 5V microcontrollers like Arduino and ESP32.\u003c\/p\u003e\n\u003c\/details\u003e\n\n\u003cdetails\u003e\n\u003csummary\u003eWhat payment options are available for Sim800C GPRS\/GSM Shield?\u003c\/summary\u003e\n\u003cp\u003eWe accept UPI, credit\/debit cards, and Cash on Delivery (COD) if checkout offers it for your order.\u003c\/p\u003e\n\u003c\/details\u003e\n\n\u003cdetails\u003e\n\u003csummary\u003eHow long does delivery take?\u003c\/summary\u003e\n\u003cp\u003eWe ship Sim800C GPRS\/GSM Shield across India including Delhi, Mumbai, Bangalore, Hyderabad, Chennai, and Pune. Standard delivery takes 2-7 days after dispatch, depending on your location.\u003c\/p\u003e\n\u003c\/details\u003e\n\n\u003cp\u003eBuy Sim800C GPRS\/GSM Shield Online in India — with UPI and cards, plus COD if checkout offers it for your order.\u003c\/p\u003e\n\n","brand":"Compoden","offers":[{"title":"Default Title","offer_id":53492683342189,"sku":"CDN-2295","price":1324.0,"currency_code":"INR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0999\/3997\/5533\/files\/sim800c-gprsgsm-shield-with-antenna-5906792.jpg?v=1785259413"},{"product_id":"sim800l-v2-5v-wireless-gsm-gprs-module-quad-band-with-antenna","title":"SIM800L V2 5V Wireless GSM GPRS MODULE Quad-Band with Antenna","description":"\u003ch1\u003eSIM800L V2 5V Wireless GSM GPRS Module Quad-Band with Antenna\u003c\/h1\u003e\n\u003cp\u003eThe SIM800L V2 is a compact, 5V-compatible GSM\/GPRS module that enables cellular communication for your microcontroller projects. It supports quad-band frequencies (850\/900\/1800\/1900 MHz), making it suitable for 2G networks in India and globally. This module is ideal for makers, students, and engineers building IoT devices, SMS alerts, or remote control systems.\u003c\/p\u003e\n\n\u003ch2\u003eSpecifications\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eOperating voltage: 5V DC (onboard regulator)\u003c\/li\u003e\n\u003cli\u003eQuad-band: 850, 900, 1800, 1900 MHz\u003c\/li\u003e\n\u003cli\u003eGPRS multi-slot class 12\u003c\/li\u003e\n\u003cli\u003eInterface: UART (TTL logic level)\u003c\/li\u003e\n\u003cli\u003eSupports SMS, voice calls, and GPRS data\u003c\/li\u003e\n\u003cli\u003eOnboard antenna connector (includes antenna)\u003c\/li\u003e\n\u003cli\u003eDimensions: approx. 25mm x 25mm\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eCompatible with\u003c\/h2\u003e\n\u003cp\u003eArduino Uno, Arduino Mega, ESP32, ESP8266, Raspberry Pi, STM32, and any 3.3V\/5V logic microcontroller with UART.\u003c\/p\u003e\n\n\u003ch2\u003eWhat you can build with it\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eRemote SMS-based appliance control (turn on\/off lights or pumps)\u003c\/li\u003e\n\u003cli\u003eGPS tracker with SMS location updates\u003c\/li\u003e\n\u003cli\u003eIoT weather station sending data to the cloud via GPRS\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eBuilt and Backed by Compoden\u003c\/h2\u003e\n\u003cp\u003eEvery SIM800L V2 module includes access to our AI build companion — delivered via QR code, email, or WhatsApp — that helps you wire and program it into a working project. With 10 years of experience supplying electronics to schools, colleges, and makers across India, we ensure you get the right part and the support to use it. Pay your way: UPI or cards anywhere in India, plus COD if checkout offers it for your order.\u003c\/p\u003e\n\n\u003cdetails\u003e\n\u003csummary\u003eWhat is the difference between SIM800L V1 and V2?\u003c\/summary\u003e\n\u003cp\u003eThe V2 version includes an onboard 5V regulator and improved antenna circuitry, making it more stable with 5V microcontrollers like Arduino Uno.\u003c\/p\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n\u003csummary\u003eWhat payment options are available for SIM800L V2?\u003c\/summary\u003e\n\u003cp\u003eWe accept UPI, credit\/debit cards, and Cash on Delivery (COD) if checkout offers it for your order.\u003c\/p\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n\u003csummary\u003eHow do I buy SIM800L V2 online in India?\u003c\/summary\u003e\n\u003cp\u003eAdd the module to your cart, choose your payment method, and we ship it across India including Delhi, Mumbai, Bangalore, Hyderabad, Chennai, and Pune.\u003c\/p\u003e\n\u003c\/details\u003e\n\n\n\n\u003cscript type=\"application\/ld+json\"\u003e\n{\n  \"@context\": \"https:\/\/schema.org\",\n  \"@type\": \"FAQPage\",\n  \"mainEntity\": [\n    {\n      \"@type\": \"Question\",\n      \"name\": \"What is the difference between SIM800L V1 and V2?\",\n      \"acceptedAnswer\": {\n        \"@type\": \"Answer\",\n        \"text\": \"The V2 version includes an onboard 5V regulator and improved antenna circuitry, making it more stable with 5V microcontrollers like Arduino Uno.\"\n      }\n    },\n    {\n      \"@type\": \"Question\",\n      \"name\": \"What payment options are available for SIM800L V2?\",\n      \"acceptedAnswer\": {\n        \"@type\": \"Answer\",\n        \"text\": \"We accept UPI, credit\/debit cards, and Cash on Delivery (COD) if checkout offers it for your order.\"\n      }\n    },\n    {\n      \"@type\": \"Question\",\n      \"name\": \"How do I buy SIM800L V2 online in India?\",\n      \"acceptedAnswer\": {\n        \"@type\": \"Answer\",\n        \"text\": \"Add the module to your cart, choose your payment method, and we ship it across India including Delhi, Mumbai, Bangalore, Hyderabad, Chennai, and Pune.\"\n      }\n    }\n  ]\n}\n\u003c\/script\u003e","brand":"Compoden","offers":[{"title":"Default Title","offer_id":53492683374957,"sku":"CDN-2296","price":729.0,"currency_code":"INR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0999\/3997\/5533\/files\/sim800l-v2-5v-wireless-gsm-gprs-module-quad-band-with-antenna-7271699.png?v=1785259370"},{"product_id":"hc-05-wireless-bluetooth-module-without-base-plate","title":"HC-05 Wireless Bluetooth Module without Base Plate","description":"\u003ch1\u003eHC-05 Wireless Bluetooth Module without Base Plate\u003c\/h1\u003e\n\n\u003cp\u003eThe HC-05 Wireless Bluetooth Module is a serial-to-Bluetooth bridge that enables wireless communication between microcontrollers and devices. It operates in both master and slave modes, making it suitable for a range of wireless control and data transfer projects.\u003c\/p\u003e\n\n\u003ch2\u003eSpecifications\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eBluetooth version: 2.0 + EDR\u003c\/li\u003e\n\u003cli\u003eOperating voltage: 3.6V to 6V\u003c\/li\u003e\n\u003cli\u003eLogic level: 3.3V\u003c\/li\u003e\n\u003cli\u003eInterface: UART (serial)\u003c\/li\u003e\n\u003cli\u003eDefault baud rate: 9600 bps\u003c\/li\u003e\n\u003cli\u003eCommunication range: up to 10 meters\u003c\/li\u003e\n\u003cli\u003eDimensions: 27mm x 13mm x 2mm (without base plate)\u003c\/li\u003e\n\u003cli\u003ePin count: 6 pins (EN, VCC, GND, TXD, RXD, STATE)\u003c\/li\u003e\n\u003cli\u003eMaster\/slave mode configurable via AT commands\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eCompatible with\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eArduino Uno, Mega, Nano\u003c\/li\u003e\n\u003cli\u003eESP32 and ESP8266\u003c\/li\u003e\n\u003cli\u003eRaspberry Pi (via USB-to-TTL adapter)\u003c\/li\u003e\n\u003cli\u003eSTM32\u003c\/li\u003e\n\u003cli\u003ePIC and AVR microcontrollers\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eWhat you can build with it\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eWireless robot control system using a smartphone app\u003c\/li\u003e\n\u003cli\u003eBluetooth-based home automation to switch lights or fans\u003c\/li\u003e\n\u003cli\u003eWireless data logger that sends sensor readings to a phone\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eBuilt and Backed by Compoden\u003c\/h2\u003e\n\u003cp\u003eEvery HC-05 module from Compoden comes with an AI build companion delivered via QR code, email, or WhatsApp. It helps you wire and program this module into a working project step by step. With 10 years of experience supplying makers and institutions across India, we ensure you get genuine parts and reliable support. Pay your way: UPI or cards anywhere in India, plus COD if checkout offers it for your order.\u003c\/p\u003e\n\n\u003cdetails\u003e\n\u003csummary\u003eHow do I configure the HC-05 as master or slave?\u003c\/summary\u003e\n\u003cp\u003eYou can configure the HC-05 using AT commands over a serial terminal. Connect the module to an Arduino or USB-to-TTL adapter, enter AT mode by holding the EN pin high during power-up, and send commands like AT+ROLE=0 for slave or AT+ROLE=1 for master.\n\u003c\/p\u003e\u003c\/details\u003e\n\n\u003cdetails\u003e\n\u003csummary\u003eWhat is the difference between HC-05 and HC-06?\u003c\/summary\u003e\n\u003cp\u003eThe HC-05 supports both master and slave modes, while the HC-06 is slave-only. The HC-05 is more versatile for projects requiring two-way communication or initiating connections from the module itself.\n\u003c\/p\u003e\u003c\/details\u003e\n\n\u003cdetails\u003e\n\u003csummary\u003eWhat payment options are available for HC-05 Wireless Bluetooth Module?\u003c\/summary\u003e\n\u003cp\u003eYou can pay using UPI, credit\/debit cards, or Cash on Delivery (COD) if checkout offers it for your order. All payment methods are available across India.\n\u003c\/p\u003e\u003c\/details\u003e\n\n\u003cdetails\u003e\n\u003csummary\u003eHow long does delivery take?\u003c\/summary\u003e\n\u003cp\u003eWe ship HC-05 Wireless Bluetooth Module across India including Delhi, Mumbai, Bangalore, Hyderabad, Chennai, and Pune. Delivery takes 2-7 days after dispatch, depending on your location.\u003c\/p\u003e\u003c\/details\u003e\n\n","brand":"Compoden","offers":[{"title":"Default Title","offer_id":53492683833709,"sku":"CDN-2227","price":816.0,"currency_code":"INR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0999\/3997\/5533\/files\/hc-05-wireless-bluetooth-module-without-base-plate-5434712.jpg?v=1785259369"},{"product_id":"hm-10-ble-bluetooth-4-0-cc2541-wireless-module","title":"HM-10 BLE Bluetooth 4.0 CC2541 Wireless Module","description":"\u003ch1\u003eHM-10 BLE Bluetooth 4.0 CC2541 Wireless Module\u003c\/h1\u003e\n\nThe HM-10 is a Bluetooth 4.0 Low Energy (BLE) module based on the TI CC2541 chipset. It enables wireless serial communication between microcontrollers and smartphones or other BLE devices. This module is ideal for makers and students building IoT and wireless control projects.\n\n\u003ch2\u003eSpecifications\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eBluetooth version: 4.0 BLE (Bluetooth Low Energy)\u003c\/li\u003e\n\u003cli\u003eChipset: Texas Instruments CC2541\u003c\/li\u003e\n\u003cli\u003eInterface: UART (3.3V logic level)\u003c\/li\u003e\n\u003cli\u003eDefault baud rate: 9600 bps\u003c\/li\u003e\n\u003cli\u003eOperating voltage: 3.3V DC\u003c\/li\u003e\n\u003cli\u003eTransmit power: up to +6 dBm\u003c\/li\u003e\n\u003cli\u003eRange: approximately 30 meters (open area)\u003c\/li\u003e\n\u003cli\u003eDimensions: 27.5 mm × 13.5 mm × 2.5 mm\u003c\/li\u003e\n\u003cli\u003ePin pitch: 2.54 mm\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eCompatible with\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eArduino Uno, Nano, Mega\u003c\/li\u003e\n\u003cli\u003eESP32 and ESP8266 boards\u003c\/li\u003e\n\u003cli\u003eRaspberry Pi (via UART)\u003c\/li\u003e\n\u003cli\u003eSTM32 microcontrollers\u003c\/li\u003e\n\u003cli\u003eAny 3.3V logic microcontroller with UART\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eWhat you can build with it\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eWireless sensor node that sends temperature or humidity data to a smartphone app\u003c\/li\u003e\n\u003cli\u003eBLE-controlled robot car using an Arduino and a phone\u003c\/li\u003e\n\u003cli\u003eSmart lock or relay control system activated via Bluetooth from a mobile device\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eBuilt and Backed by Compoden\u003c\/h2\u003e\n\u003cp\u003eEvery HM-10 module from Compoden includes access to our AI build companion — delivered via QR code, email, or WhatsApp — that helps you wire and program this part into a working project. With 10 years of experience supplying makers, schools, and engineering institutions across India, we ensure you get genuine components and reliable support. Pay your way: UPI or cards anywhere in India, plus COD if checkout offers it for your order.\u003c\/p\u003e\n\n\u003cdetails\u003e\n\u003csummary\u003eWhat is the operating voltage of the HM-10 module?\u003c\/summary\u003e\n\u003cp\u003eThe HM-10 operates at 3.3V DC. Do not connect it directly to 5V logic pins without a level shifter.\u003c\/p\u003e\n\u003c\/details\u003e\n\n\u003cdetails\u003e\n\u003csummary\u003eWhat payment options are available for the HM-10 BLE Bluetooth 4.0 CC2541 Wireless Module?\u003c\/summary\u003e\n\u003cp\u003eWe accept UPI, debit\/credit cards, and Cash on Delivery (COD) if checkout offers it for your order.\u003c\/p\u003e\n\u003c\/details\u003e\n\n\u003cdetails\u003e\n\u003csummary\u003eHow long does delivery take and where do you ship?\u003c\/summary\u003e\n\u003cp\u003eWe ship the HM-10 BLE Bluetooth 4.0 CC2541 Wireless Module across India including Delhi, Mumbai, Bangalore, Hyderabad, Chennai, and Pune. Delivery takes 2-7 days after dispatch, depending on your location.\u003c\/p\u003e\n\u003c\/details\u003e\n\n\u003cp\u003eBuy the HM-10 BLE Bluetooth 4.0 CC2541 Wireless Module online in India with UPI and cards, plus COD if checkout offers it for your order.\u003c\/p\u003e\n\n","brand":"Compoden","offers":[{"title":"Default Title","offer_id":53492683899245,"sku":"CDN-2228","price":548.0,"currency_code":"INR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0999\/3997\/5533\/files\/hm-10-ble-bluetooth-40-cc2541-wireless-module-8072666.jpg?v=1785259369"},{"product_id":"lora-module-rfm95pw-868s2","title":"RFM95PW-868S2 LoRa Module (868MHz, SPI) for Arduino \u0026 IoT","description":"\u003ch1\u003eLoRa Module RFM95PW-868S2\u003c\/h1\u003e\n\u003cp\u003eThe RFM95PW-868S2 is a high-performance LoRa transceiver module operating in the 868 MHz ISM band, designed for long-range wireless communication with ultra-low power consumption. IoT developers, embedded systems engineers, and wireless network architects use this module to build scalable mesh networks, remote sensor deployments, and smart city applications requiring kilometers of range with minimal battery drain.\u003c\/p\u003e\n\n\u003ch2\u003eSpecifications\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eFrequency: 868 MHz (ISM band)\u003c\/li\u003e\n\u003cli\u003eModulation: LoRa, FSK, OOK\u003c\/li\u003e\n\u003cli\u003eOutput Power: +20 dBm (100 mW) maximum\u003c\/li\u003e\n\u003cli\u003eReceiver Sensitivity: down to -148 dBm\u003c\/li\u003e\n\u003cli\u003eInterface: SPI\u003c\/li\u003e\n\u003cli\u003eSupply Voltage: 1.8 V to 3.7 V\u003c\/li\u003e\n\u003cli\u003eOperating Current: ~120 mA (TX), ~10.8 mA (RX)\u003c\/li\u003e\n\u003cli\u003eSleep Current: \u0026lt; 1 µA\u003c\/li\u003e\n\u003cli\u003eRange: up to 2 km (line-of-sight)\u003c\/li\u003e\n\u003cli\u003eDimensions: 16 mm x 26 mm\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eCompatible with\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eArduino (Uno, Mega, Nano)\u003c\/li\u003e\n\u003cli\u003eESP32\u003c\/li\u003e\n\u003cli\u003eESP8266\u003c\/li\u003e\n\u003cli\u003eRaspberry Pi (via SPI)\u003c\/li\u003e\n\u003cli\u003eSTM32\u003c\/li\u003e\n\u003cli\u003eAny microcontroller with SPI interface\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eWhat you can build with it\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eLong-range weather station transmitting data from a remote field to a central hub\u003c\/li\u003e\n\u003cli\u003eSmart agriculture system monitoring soil moisture and temperature across a farm\u003c\/li\u003e\n\u003cli\u003eAsset tracker for vehicles or equipment in a large warehouse or campus\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eBuilt and Backed by Compoden\u003c\/h2\u003e\n\u003cp\u003eEvery RFM95PW-868S2 module ships with access to our AI build companion, delivered via QR code, email, or WhatsApp, which helps you wire and program this part into a working project. With 10 years of experience supplying makers, schools, and engineering institutions across India, we ensure you have the support you need. Pay your way: UPI or cards anywhere in India, plus COD if checkout offers it for your order.\u003c\/p\u003e\n\n\u003cdetails\u003e\n\u003csummary\u003eWhat is the range of the RFM95PW-868S2 module?\u003c\/summary\u003e\n\u003cp\u003eThe module can achieve up to 2 km line-of-sight range under optimal conditions. Actual range depends on antenna, environment, and data rate settings.\u003c\/p\u003e\n\u003c\/details\u003e\n\n\u003cdetails\u003e\n\u003csummary\u003eWhat payment options are available for the LoRa Module RFM95PW-868S2?\u003c\/summary\u003e\n\u003cp\u003eWe accept UPI, all major credit\/debit cards, and Cash on Delivery (COD) if checkout offers it for your order. All payment options are available across India.\u003c\/p\u003e\n\u003c\/details\u003e\n\n\u003cdetails\u003e\n\u003csummary\u003eHow do I get started with this module?\u003c\/summary\u003e\n\u003cp\u003eWe ship the RFM95PW-868S2 across India including Delhi, Mumbai, Bangalore, Hyderabad, Chennai, and Pune. Use our AI build companion to get wiring diagrams and sample code for your microcontroller.\u003c\/p\u003e\n\u003c\/details\u003e\n\n\u003cp\u003eBuy LoRa Module RFM95PW-868S2 online in India with UPI and cards, plus COD if checkout offers it for your order.\u003c\/p\u003e\n\n","brand":"Compoden","offers":[{"title":"Default Title","offer_id":53492683997549,"sku":"CDN-2251","price":1687.0,"currency_code":"INR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0999\/3997\/5533\/files\/rfm95pw-868s2-lora-module-868mhz-sx1276-spi-for-arduino-iot-3744729.png?v=1785259369"},{"product_id":"lora-module-rfm90w-433s2r","title":"LoRa module RFM90W-433S2R","description":"\u003ch1\u003eLoRa Module RFM90W-433S2R\u003c\/h1\u003e\n\u003cp\u003eThe LoRa module RFM90W-433S2R is a 433 MHz long-range wireless transceiver based on Semtech SX1276 technology. It is designed for low-power, long-distance IoT and sensor network applications requiring reliable communication over several kilometers.\u003c\/p\u003e\n\n\u003ch2\u003eSpecifications\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eFrequency: 433 MHz (ISM band)\u003c\/li\u003e\n\u003cli\u003eModulation: LoRa, FSK, OOK\u003c\/li\u003e\n\u003cli\u003eInterface: SPI\u003c\/li\u003e\n\u003cli\u003eOutput power: up to +20 dBm (100 mW)\u003c\/li\u003e\n\u003cli\u003eReceiver sensitivity: down to -148 dBm\u003c\/li\u003e\n\u003cli\u003eSupply voltage: 2.4V to 3.7V\u003c\/li\u003e\n\u003cli\u003eOperating current: ~120 mA (TX), ~12 mA (RX)\u003c\/li\u003e\n\u003cli\u003eDimensions: 16 x 16 x 2 mm (approx.)\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eCompatible with\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eArduino (Uno, Mega, Nano)\u003c\/li\u003e\n\u003cli\u003eESP32 and ESP8266\u003c\/li\u003e\n\u003cli\u003eRaspberry Pi (via SPI)\u003c\/li\u003e\n\u003cli\u003eSTM32 microcontrollers\u003c\/li\u003e\n\u003cli\u003eAny MCU with SPI interface\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eWhat you can build with it\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eLong-range weather station transmitting sensor data from remote fields\u003c\/li\u003e\n\u003cli\u003eSmart agriculture system for soil moisture and temperature monitoring\u003c\/li\u003e\n\u003cli\u003eLoRa-based mesh network for asset tracking across a campus\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eBuilt and Backed by Compoden\u003c\/h2\u003e\n\u003cp\u003eEvery RFM90W-433S2R module ships with access to our AI build companion, delivered via QR code, email, or WhatsApp — it helps you wire and program this part into a working project. With 10 years of experience supplying makers and institutions across India, we ensure you get genuine components and reliable support. Pay your way: UPI or cards anywhere in India, plus COD if checkout offers it for your order.\u003c\/p\u003e\n\n\u003cdetails\u003e\n\u003csummary\u003eWhat is the range of the RFM90W-433S2R module?\u003c\/summary\u003e\n\u003cp\u003eWith line-of-sight and proper antenna, the module can achieve ranges of 3–5 km in open areas. Range depends on environment, antenna, and data rate settings.\u003c\/p\u003e\n\u003c\/details\u003e\n\n\u003cdetails\u003e\n\u003csummary\u003eWhat payment options are available for the LoRa Module RFM90W-433S2R?\u003c\/summary\u003e\n\u003cp\u003eWe accept UPI, credit\/debit cards, and Cash on Delivery (COD) if checkout offers it for your order.\u003c\/p\u003e\n\u003c\/details\u003e\n\n\u003cdetails\u003e\n\u003csummary\u003eHow long does delivery take?\u003c\/summary\u003e\n\u003cp\u003eWe ship the LoRa Module RFM90W-433S2R across India including Delhi, Mumbai, Bangalore, Hyderabad, Chennai, and Pune. Delivery takes 2-7 days after dispatch, depending on your location.\u003c\/p\u003e\n\u003c\/details\u003e\n\n","brand":"Compoden","offers":[{"title":"Default Title","offer_id":53492684849517,"sku":"CDN-2249","price":867.0,"currency_code":"INR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0999\/3997\/5533\/files\/lora-module-rfm90w-433s2r-6179237.jpg?v=1785259369"},{"product_id":"lora-module-rfm90w-915s2r","title":"LoRa module RFM90W-915S2R","description":"\u003ch1\u003eLoRa Module RFM90W-915S2R\u003c\/h1\u003e\n\u003cp\u003eThe LoRa Module RFM90W-915S2R is a 915MHz long-range wireless transceiver based on Semtech SX1276 technology. It is designed for low-power, wide-area network (LPWAN) applications, making it suitable for IoT projects, remote sensor networks, and industrial monitoring systems.\u003c\/p\u003e\n\n\u003ch2\u003eSpecifications\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eFrequency: 915 MHz (ISM band)\u003c\/li\u003e\n\u003cli\u003eModulation: LoRa, FSK, OOK\u003c\/li\u003e\n\u003cli\u003eInterface: SPI\u003c\/li\u003e\n\u003cli\u003eOutput Power: Up to +20 dBm\u003c\/li\u003e\n\u003cli\u003eReceiver Sensitivity: Down to -148 dBm\u003c\/li\u003e\n\u003cli\u003eSupply Voltage: 1.8V to 3.7V\u003c\/li\u003e\n\u003cli\u003eOperating Temperature: -40°C to +85°C\u003c\/li\u003e\n\u003cli\u003eDimensions: 16 x 26 mm (approx.)\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eCompatible with\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eArduino (Uno, Mega, Nano)\u003c\/li\u003e\n\u003cli\u003eESP32\u003c\/li\u003e\n\u003cli\u003eESP8266\u003c\/li\u003e\n\u003cli\u003eRaspberry Pi (via SPI)\u003c\/li\u003e\n\u003cli\u003eSTM32\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eWhat you can build with it\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eLong-range temperature and humidity monitoring for agriculture\u003c\/li\u003e\n\u003cli\u003eRemote water level or tank monitoring system\u003c\/li\u003e\n\u003cli\u003eWireless sensor network for smart city or campus applications\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eBuilt and Backed by Compoden\u003c\/h2\u003e\n\u003cp\u003eEvery LoRa module from Compoden comes with a free AI build companion — delivered via QR, email, or WhatsApp — that helps you wire and program this part into a working project. With 10 years of experience supplying makers and institutions across India, we ensure reliable components and responsive support. Pay your way: UPI or cards anywhere in India, plus COD if checkout offers it for your order.\u003c\/p\u003e\n\n\u003cdetails\u003e\n\u003csummary\u003eWhat is the range of the RFM90W-915S2R?\u003c\/summary\u003e\n\u003cp\u003eRange depends on environment and antenna. In open line-of-sight, it can reach several kilometers with proper antenna and settings. In urban areas, expect 1–2 km.\u003c\/p\u003e\n\u003c\/details\u003e\n\n\u003cdetails\u003e\n\u003csummary\u003eWhat payment options are available for the LoRa Module RFM90W-915S2R?\u003c\/summary\u003e\n\u003cp\u003eYou can pay via UPI, credit\/debit cards, or Cash on Delivery (COD) if checkout offers it for your order.\u003c\/p\u003e\n\u003c\/details\u003e\n\n\u003cdetails\u003e\n\u003csummary\u003eHow do I get started with this module?\u003c\/summary\u003e\n\u003cp\u003eConnect the module to your microcontroller via SPI (pins: NSS, MOSI, MISO, SCK). Use the RadioHead or LoRa library for Arduino. We ship this module across India including Delhi, Mumbai, Bangalore, Hyderabad, Chennai, and Pune.\u003c\/p\u003e\n\u003c\/details\u003e\n\n\u003cp\u003eBuy LoRa Module RFM90W-915S2R online in India from Compoden — with UPI and cards, plus COD if checkout offers it for your order.\u003c\/p\u003e\n\n","brand":"Compoden","offers":[{"title":"Default Title","offer_id":53492684947821,"sku":"CDN-2250","price":889.0,"currency_code":"INR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0999\/3997\/5533\/files\/lora-module-rfm90w-915s2r-6798230.jpg?v=1785259369"},{"product_id":"digi-xbee3-pro-2-4ghz-zb3-0-rp-sma-female-antenna","title":"Digi XBee3 PRO 2.4GHz ZB3.0 RP-SMA Female Antenna","description":"\u003ch1\u003eDigi XBee3 PRO 2.4GHz ZB3.0 RP-SMA Female Antenna\u003c\/h1\u003e\n\n\u003cp\u003eThe Digi XBee3 PRO 2.4GHz ZB3.0 RP-SMA Female Antenna is a professional-grade external antenna designed for extended wireless range and improved signal penetration in Zigbee mesh networking applications. Industrial engineers, IoT developers, and automation specialists use this antenna to overcome signal dead zones and achieve reliable communication in complex RF environments.\u003c\/p\u003e\n\n\u003ch2\u003eSpecifications\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eFrequency: 2.4 GHz\u003c\/li\u003e\n\u003cli\u003eConnector: RP-SMA Female\u003c\/li\u003e\n\u003cli\u003eCompatible with: Digi XBee3 PRO ZB3.0 modules\u003c\/li\u003e\n\u003cli\u003eForm Factor: External, whip antenna\u003c\/li\u003e\n\u003cli\u003ePolarization: Linear\u003c\/li\u003e\n\u003cli\u003eImpedance: 50 Ohms\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eCompatible with\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eDigi XBee3 PRO ZB3.0 modules (XB3-24Z8PT-J, XB3-24Z8ST-J)\u003c\/li\u003e\n\u003cli\u003eDigi XBee S2C and S2D PRO modules (with RP-SMA connector)\u003c\/li\u003e\n\u003cli\u003eAny Zigbee 3.0 device using Digi XBee3 PRO footprint\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eWhat you can build with it\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eIndustrial sensor networks with reliable mesh communication across factory floors\u003c\/li\u003e\n\u003cli\u003eSmart building automation systems for lighting, HVAC, and access control\u003c\/li\u003e\n\u003cli\u003eOutdoor IoT deployments requiring extended range and robust signal\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eBuilt and Backed by Compoden\u003c\/h3\u003e\n\u003cp\u003eEvery Digi XBee3 PRO antenna from Compoden comes with a free AI build companion — delivered via QR code, email, or WhatsApp — that helps you wire and integrate this antenna into your Zigbee project. With 10 years of experience supplying electronics to makers, schools, and engineering institutions across India, we ensure you get genuine parts and practical support. Pay your way: UPI or cards anywhere in India, plus COD if checkout offers it for your order.\u003c\/p\u003e\n\n\u003cdetails\u003e\n\u003csummary\u003eWhat is the difference between RP-SMA and standard SMA?\u003c\/summary\u003e\n\u003cp\u003eRP-SMA (Reverse Polarity SMA) has the center pin reversed compared to standard SMA. This antenna uses RP-SMA Female, which has a threaded outer shell and a center hole — matching the RP-SMA Male connector found on Digi XBee3 PRO modules.\u003c\/p\u003e\n\u003c\/details\u003e\n\n\u003cdetails\u003e\n\u003csummary\u003eWhat payment options are available for the Digi XBee3 PRO antenna?\u003c\/summary\u003e\n\u003cp\u003eYou can pay using UPI, debit\/credit cards, or Cash on Delivery (COD) if checkout offers it for your order. All payment options are available across India.\u003c\/p\u003e\n\u003c\/details\u003e\n\n\u003cdetails\u003e\n\u003csummary\u003eHow long does delivery take?\u003c\/summary\u003e\n\u003cp\u003eWe ship the Digi XBee3 PRO antenna across India including Delhi, Mumbai, Bangalore, Hyderabad, Chennai, and Pune. Delivery takes 2-7 days after dispatch, depending on your location.\u003c\/p\u003e\n\u003c\/details\u003e\n\n\u003cp\u003eBuy Digi XBee3 PRO 2.4GHz ZB3.0 RP-SMA Female Antenna online in India with UPI and cards, plus COD if checkout offers it for your order.\u003c\/p\u003e\n\n","brand":"Digi","offers":[{"title":"Default Title","offer_id":53492685078893,"sku":"CDN-2195","price":4820.0,"currency_code":"INR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0999\/3997\/5533\/files\/digi-xbee3-pro-24ghz-zb30-rp-sma-female-antenna-3417677.jpg?v=1785259368"},{"product_id":"3-channel-rf-wireless-on-off-smart-switch-with-rf-remote-control","title":"3 Channel RF Wireless ON\/OFF Smart Switch with RF Remote Control","description":"\u003ch1\u003e3 Channel RF Wireless ON\/OFF Smart Switch with RF Remote Control\u003c\/h1\u003e\n\n\u003cp\u003eThis 3-channel RF smart switch lets you wirelessly control up to three AC appliances, each rated up to 1000W, using a 433MHz RF remote. Designed for easy installation into existing switchboards, it is ideal for makers, hobbyists, and home automation enthusiasts looking to add remote control to lights, fans, and other 220V devices.\u003c\/p\u003e\n\n\u003ch2\u003eSpecifications\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eChannels: 3 (independent ON\/OFF control)\u003c\/li\u003e\n\u003cli\u003eOperating Voltage: 220V AC @ 50Hz\u003c\/li\u003e\n\u003cli\u003eMaximum Load per Channel: 1000W\u003c\/li\u003e\n\u003cli\u003eRF Frequency: 433MHz\u003c\/li\u003e\n\u003cli\u003eRemote Range: Up to 30 meters (open area)\u003c\/li\u003e\n\u003cli\u003eRemote Type: RF handheld remote (included)\u003c\/li\u003e\n\u003cli\u003eRelay Type: Mechanical relay\u003c\/li\u003e\n\u003cli\u003eDimensions: Compact module for switchboard mounting\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eCompatible with\u003c\/h2\u003e\n\u003cp\u003eThis is a standalone RF switch module and does not require a microcontroller. It can be integrated with Arduino, ESP32, ESP8266, or Raspberry Pi projects using additional RF receiver modules for custom automation.\u003c\/p\u003e\n\n\u003ch2\u003eWhat you can build with it\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eWireless home lighting control – turn lights on\/off from anywhere in the room.\u003c\/li\u003e\n\u003cli\u003eRemote fan or appliance control – add wireless switching to existing ceiling fans or water pumps.\u003c\/li\u003e\n\u003cli\u003eAutomated garden or garage systems – control outdoor lights or garage doors via RF remote.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eBuilt and Backed by Compoden\u003c\/h2\u003e\n\u003cp\u003eEvery purchase includes access to our AI build companion, delivered via QR code, email, or WhatsApp, to help you wire and program this switch into a working project. With 10 years of experience supplying makers and institutions across India, we ensure you get the right part and the support to use it. Pay your way: UPI or cards anywhere in India, plus COD if checkout offers it for your order.\u003c\/p\u003e\n\n\u003cdetails\u003e\n\u003csummary\u003eHow do I install this RF smart switch?\u003c\/summary\u003e\n\u003cp\u003eConnect the module to your 220V AC line and load (e.g., a light or fan) as per the wiring diagram included. The RF remote is pre-paired; just press the corresponding button to toggle each channel.\u003c\/p\u003e\n\u003c\/details\u003e\n\n\u003cdetails\u003e\n\u003csummary\u003eWhat payment options are available for the 3 Channel RF Wireless Smart Switch?\u003c\/summary\u003e\n\u003cp\u003eWe accept UPI, all major credit\/debit cards, and Cash on Delivery (COD) if checkout offers it for your order.\u003c\/p\u003e\n\u003c\/details\u003e\n\n\u003cdetails\u003e\n\u003csummary\u003eHow long does delivery take?\u003c\/summary\u003e\n\u003cp\u003eWe ship this switch across India including Delhi, Mumbai, Bangalore, Hyderabad, Chennai, and Pune. Delivery takes 2-7 days after dispatch, depending on your location.\u003c\/p\u003e\n\u003c\/details\u003e\n\n\u003cp\u003eBuy 3 Channel RF Wireless Smart Switch Online in India with UPI and cards, plus COD if checkout offers it for your order.\u003c\/p\u003e\n\n","brand":"Compoden","offers":[{"title":"Default Title","offer_id":53492687733101,"sku":"CDN-2055","price":633.0,"currency_code":"INR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0999\/3997\/5533\/files\/3-channel-rf-wireless-onoff-smart-switch-with-rf-remote-control-1871813.jpg?v=1785259363"},{"product_id":"nrf24l01-2-4ghz-wireless-transceiver-module","title":"nRF24L01 2.4GHz Wireless Transceiver Module","description":"\u003ch1\u003enRF24L01 2.4GHz Wireless Transceiver Module\u003c\/h1\u003e\n\u003cp\u003eThe nRF24L01 is a 2.4GHz RF wireless transceiver module built on the Nordic nRF24L01+ chip. It uses an SPI interface for low-power, two-way wireless communication, making it a standard choice for linking Arduino, ESP32, and Raspberry Pi projects.\u003c\/p\u003e\n\n\u003ch2\u003eSpecifications\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eOperating frequency: 2.4GHz ISM band\u003c\/li\u003e\n\u003cli\u003eInterface: SPI (Serial Peripheral Interface)\u003c\/li\u003e\n\u003cli\u003eLogic level: 3.3V (requires level shifting with 5V microcontrollers)\u003c\/li\u003e\n\u003cli\u003eNumber of channels: 126 (selectable)\u003c\/li\u003e\n\u003cli\u003eData rates: 250kbps, 1Mbps, 2Mbps\u003c\/li\u003e\n\u003cli\u003eRange: Up to 100m line-of-sight (with onboard PCB antenna)\u003c\/li\u003e\n\u003cli\u003eSupply voltage: 1.9V to 3.6V\u003c\/li\u003e\n\u003cli\u003eDimensions: 29mm x 15mm x 4mm (approx.)\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eCompatible with\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eArduino (Uno, Nano, Mega, Leonardo)\u003c\/li\u003e\n\u003cli\u003eESP32 and ESP8266\u003c\/li\u003e\n\u003cli\u003eRaspberry Pi (all models)\u003c\/li\u003e\n\u003cli\u003eSTM32\u003c\/li\u003e\n\u003cli\u003eAVR and PIC microcontrollers\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eWhat you can build with it\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eWireless remote control for robots and RC vehicles\u003c\/li\u003e\n\u003cli\u003eSensor telemetry system (temperature, humidity, pressure data sent wirelessly)\u003c\/li\u003e\n\u003cli\u003eSimple mesh network for multi-node communication\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eBuilt and Backed by Compoden\u003c\/h2\u003e\n\u003cp\u003eEvery nRF24L01 module from Compoden comes with access to our AI build companion, delivered via QR code, email, or WhatsApp, that helps you wire and program it into a working project. With 10 years of experience supplying makers and institutions across India, we ensure you get genuine parts and reliable support. Pay your way: UPI or cards anywhere in India, plus COD if checkout offers it for your order.\u003c\/p\u003e\n\n\u003cdetails\u003e\n\u003csummary\u003eWhat is the range of the nRF24L01 module?\u003c\/summary\u003e\n\u003cp\u003eWith the onboard PCB antenna, the nRF24L01 achieves up to 100 meters line-of-sight. Range can be extended with an external antenna on the nRF24L01+PA+LNA variant.\u003c\/p\u003e\n\u003c\/details\u003e\n\n\u003cdetails\u003e\n\u003csummary\u003eHow do I connect the nRF24L01 to an Arduino?\u003c\/summary\u003e\n\u003cp\u003eUse the SPI pins: CE (chip enable) to digital pin 9, CSN (chip select) to digital pin 10, MOSI to pin 11, MISO to pin 12, SCK to pin 13. Power the module with 3.3V and connect ground. Use the RF24 library for programming.\u003c\/p\u003e\n\u003c\/details\u003e\n\n\u003cdetails\u003e\n\u003csummary\u003eWhat payment options are available for the nRF24L01 2.4GHz Wireless Transceiver Module?\u003c\/summary\u003e\n\u003cp\u003eYou can pay via UPI, credit\/debit cards, or Cash on Delivery (COD) if checkout offers it for your order. All payment methods are available across India.\u003c\/p\u003e\n\u003c\/details\u003e\n\n\u003cdetails\u003e\n\u003csummary\u003eHow long does delivery take?\u003c\/summary\u003e\n\u003cp\u003eWe ship the nRF24L01 module across India including Delhi, Mumbai, Bangalore, Hyderabad, Chennai, and Pune. Delivery takes 2-7 days after dispatch, depending on your location.\u003c\/p\u003e\n\u003c\/details\u003e\n\n\u003cp\u003eBuy nRF24L01 Online in India with UPI and cards, plus COD if checkout offers it for your order.\u003c\/p\u003e\n\n","brand":"Compoden","offers":[{"title":"Default Title","offer_id":53587598541165,"sku":"CDN-2338","price":85.0,"currency_code":"INR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0999\/3997\/5533\/files\/nrf24l01-24ghz-wireless-transceiver-module-4835945.png?v=1785259030"}],"url":"https:\/\/compoden.com\/collections\/wireless-modules.oembed","provider":"Compoden","version":"1.0","type":"link"}