{"product_id":"kit-hc-12-long-range-serial-link","title":"HC-12 Long Range Serial Link Kit with Arduino Nano + LED","description":"\u003ch1\u003eHC‑12 Arduino Nano Kit: Wireless Serial Communication Up to 600 Metres – No LoRa Required\u003c\/h1\u003e\n\n\u003cp class=\"value-summary\"\u003eEvery part needed, pre‑tested for compatibility, with an AI build companion trained on this exact project. Shipped from Bengaluru in 3‑5 days.\u003c\/p\u003e\n\n\u003cdiv class=\"specs-strip\"\u003e\n  \u003cspan\u003e\u003cstrong\u003eDifficulty:\u003c\/strong\u003e Beginner\u003c\/span\u003e\n  \u003cspan\u003e\u003cstrong\u003eBuild Time:\u003c\/strong\u003e 2‑3 hrs\u003c\/span\u003e\n  \u003cspan\u003e\u003cstrong\u003eAge:\u003c\/strong\u003e 5‑15\u003c\/span\u003e\n  \u003cspan\u003e\u003cstrong\u003eSkill:\u003c\/strong\u003e Sending and receiving serial data over a 433MHz radio link\u003c\/span\u003e\n\u003c\/div\u003e\n\n\u003cp\u003eImagine two Arduino Nanos chatting wirelessly across a school campus, a farm field, or even your home – no internet, no Bluetooth, just a solid 600‑metre radio link. This kit gives you exactly that: a pre‑tested pair of HC‑12 433MHz transceivers that turn any serial data into a long‑range wireless pipeline. Build a remote weather station, a wireless alarm, or a simple text messenger – all with plug‑and‑play simplicity, just like a wired UART connection.\u003c\/p\u003e\n\n\u003ch2\u003eWhat You'll Build\u003c\/h2\u003e\n\u003cp\u003eTwo battery‑powered nodes that exchange serial data over distances up to 600 metres. The transmitter node can send sensor readings or typed messages; the receiver node instantly displays the incoming data on the included 0.96‑inch OLED, giving you a real‑time view of your wireless link.\u003c\/p\u003e\n\n\u003ch2\u003eWhat You'll Learn\u003c\/h2\u003e\n\u003cul\u003e\n  \u003cli\u003eConfigure the HC‑12 module’s serial parameters (baud rate, channel, power level) via AT commands.\u003c\/li\u003e\n  \u003cli\u003eTransmit and receive serial data wirelessly using Arduino’s SoftwareSerial library.\u003c\/li\u003e\n  \u003cli\u003eInterface an I2C OLED display to show received messages and signal strength.\u003c\/li\u003e\n  \u003cli\u003eBuild battery‑powered, standalone wireless nodes with voltage regulation and minimal power consumption.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eKit Contents\u003c\/h2\u003e\n\u003ctable\u003e\n  \u003cthead\u003e\u003ctr\u003e\n\u003cth\u003eComponent\u003c\/th\u003e\n\u003cth\u003eQuantity\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n  \u003ctbody\u003e\n    \u003ctr\u003e\n\u003ctd\u003eArduino Nano\u003c\/td\u003e\n\u003ctd\u003e2\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003eHC-12 433MHz Module\u003c\/td\u003e\n\u003ctd\u003e2\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003e433MHz Antenna\u003c\/td\u003e\n\u003ctd\u003e2\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003e0.96in OLED\u003c\/td\u003e\n\u003ctd\u003e1\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003e10kΩ Resistors\u003c\/td\u003e\n\u003ctd\u003e5\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003e400-pt Breadboard\u003c\/td\u003e\n\u003ctd\u003e2\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003eM-M Wires\u003c\/td\u003e\n\u003ctd\u003e20\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003e9V Battery Snap\u003c\/td\u003e\n\u003ctd\u003e2\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003c\/tbody\u003e\n\u003c\/table\u003e\n\n\u003ch2\u003eWhy Buy This Kit Instead of Sourcing Parts Separately\u003c\/h2\u003e\n\u003ctable\u003e\n  \u003cthead\u003e\u003ctr\u003e\n\u003cth\u003eFactor\u003c\/th\u003e\n\u003cth\u003eSourcing Separately\u003c\/th\u003e\n\u003cth\u003eCompoden Kit\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n  \u003ctbody\u003e\n    \u003ctr\u003e\n\u003ctd\u003eCompatibility checks\u003c\/td\u003e\n\u003ctd\u003eYou verify every part\u003c\/td\u003e\n\u003ctd\u003ePre‑tested as a system\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003eBuild support\u003c\/td\u003e\n\u003ctd\u003eForums and scattered tutorials\u003c\/td\u003e\n\u003ctd\u003eAI companion trained on this exact project\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003eTime to first working build\u003c\/td\u003e\n\u003ctd\u003eDays of debugging\u003c\/td\u003e\n\u003ctd\u003eHours, with step‑by‑step guidance\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003eShipping coordination\u003c\/td\u003e\n\u003ctd\u003eMultiple sellers, multiple delays\u003c\/td\u003e\n\u003ctd\u003eOne shipment from Bengaluru in 3‑5 days\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003c\/tbody\u003e\n\u003c\/table\u003e\n\n\u003ch2\u003eWho This Kit Is For\u003c\/h2\u003e\n\u003cp\u003eThis kit is ideal for CBSE Class 11‑12 students building physics practicals, B.Tech ECE\/EEE students prototyping wireless communication projects, and ATL Tinkering Lab participants exploring radio frequency data transfer. It’s also a favourite among Smart India Hackathon teams who need a reliable point‑to‑point serial link without the overhead of LoRaWAN or WiFi.\u003c\/p\u003e\n\n\u003ch2\u003eBuilt and Backed by Compoden\u003c\/h2\u003e\n\u003cp\u003eEvery Compoden kit ships with an AI build companion trained on this exact project – accessible via a QR code on the box, with WhatsApp and email backup. We've spent 10 years building projects for makers, schools, and institutions across India. If a part fails because of a manufacturing defect, replace it free within 7 days.\u003c\/p\u003e\n\n\u003cdetails\u003e\u003csummary\u003eWhat if I get stuck during the build?\u003c\/summary\u003e\u003cp\u003eOpen the AI companion by scanning the QR code on the box; it will guide you step by step. You can also reach us directly on WhatsApp for a human touch.\u003c\/p\u003e\u003c\/details\u003e\n\u003cdetails\u003e\u003csummary\u003eCan I increase the range beyond 600m?\u003c\/summary\u003e\u003cp\u003eYes. In open rural areas, the HC‑12 can reach up to 1 km with higher baud rates and external directional antennas. For typical urban use, the included whip antennas reliably give you 500‑600 metres.\u003c\/p\u003e\u003c\/details\u003e\n\u003cdetails\u003e\u003csummary\u003eDoes this kit include a programming cable?\u003c\/summary\u003e\u003cp\u003eThe Arduino Nanos require a mini‑USB cable for programming, which is not in the box. Most Indian households already have one from old cameras or power banks; if not, you can add it while checking out.\u003c\/p\u003e\u003c\/details\u003e\n\u003cdetails\u003e\u003csummary\u003eCan I use this kit to send sensor data from a remote field?\u003c\/summary\u003e\u003cp\u003eAbsolutely. The receiver node can display sensor readings on the OLED or pass them to a computer via USB. Many students use this as the base for an agricultural IoT project or remote weather station.\u003c\/p\u003e\u003c\/details\u003e\n\n\u003cdiv class=\"kit-description\"\u003e\n  \u003cp\u003eHC-12 433MHz transceiver sends serial data between two Arduinos over 600m range without LoRa complexity.\u003c\/p\u003e\n  \u003ch4\u003eWhat's in this kit\u003c\/h4\u003e\n  \u003cul\u003e\n    \u003cli\u003e\n\u003ca href=\"\/products\/nano-r3-ch340-development-board-arduino-compatible-no-cable\"\u003eArduino Nano\u003c\/a\u003e x2\u003c\/li\u003e\n    \u003cli\u003eHC-12 433MHz Module x2\u003c\/li\u003e\n    \u003cli\u003e\n\u003ca href=\"\/products\/433mhz-antenna-quarter-wave-helical-for-rf-modules\"\u003e433MHz Antenna\u003c\/a\u003e x2\u003c\/li\u003e\n    \u003cli\u003e\u003ca href=\"\/products\/096in-oled-display-128x64-i2cspi-for-arduino-raspberry-pi\"\u003e0.96in OLED\u003c\/a\u003e\u003c\/li\u003e\n    \u003cli\u003e\n\u003ca href=\"\/products\/resistor-variety-pack-100-pcs-10-values-14w-carbon-film\"\u003e10kΩ Resistors\u003c\/a\u003e x5\u003c\/li\u003e\n    \u003cli\u003e\n\u003ca href=\"\/products\/breadboard-standard-bundle-830400-tie-points-for-prototyping\"\u003e400-pt Breadboard\u003c\/a\u003e x2\u003c\/li\u003e\n    \u003cli\u003eM-M Wires x20\u003c\/li\u003e\n    \u003cli\u003e\n\u003ca href=\"\/products\/9v-battery-snap-connector-with-15cm-wires-compoden\"\u003e9V Battery Snap\u003c\/a\u003e x2\u003c\/li\u003e\n  \u003c\/ul\u003e\n\u003c\/div\u003e\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 included in the HC-12 Long Range Serial Link Kit with Arduino Nano + LED?\",\n      \"acceptedAnswer\": {\n        \"@type\": \"Answer\",\n        \"text\": \"The HC-12 Long Range Serial Link Kit with Arduino Nano + LED includes all components needed: Arduino Nano, HC-12 433MHz Module, 433MHz Antenna, 0.96in OLED, 10kΩ Resistors and more. Everything is pre-tested for compatibility and shipped from Bengaluru, India.\"\n      }\n    },\n    {\n      \"@type\": \"Question\",\n      \"name\": \"What skill level is required for the HC-12 Long Range Serial Link Kit with Arduino Nano + LED?\",\n      \"acceptedAnswer\": {\n        \"@type\": \"Answer\",\n        \"text\": \"This kit is designed for Beginner level makers, suitable for ages 5-15. HC-12 433MHz transceiver sends serial data between two Arduinos over 600m range without LoRa complexity. Estimated build time is 2-3 hrs.\"\n      }\n    },\n    {\n      \"@type\": \"Question\",\n      \"name\": \"Can I buy the HC-12 Long Range Serial Link Kit with Arduino Nano + LED online in India?\",\n      \"acceptedAnswer\": {\n        \"@type\": \"Answer\",\n        \"text\": \"Yes, the HC-12 Long Range Serial Link Kit with Arduino Nano + LED is available online at Compoden (compoden.in), India's AI-powered electronics and robotics store. Ships from Bengaluru in 1-5 business days across India.\"\n      }\n    }\n  ]\n}\n\u003c\/script\u003e\n\n\u003cscript type=\"application\/ld+json\"\u003e\n{\n  \"@context\": \"https:\/\/schema.org\",\n  \"@type\": \"Product\",\n  \"name\": \"HC-12 Long Range Serial Link Kit with Arduino Nano + LED\",\n  \"description\": \"HC-12 433MHz transceiver sends serial data between two Arduinos over 600m range without LoRa complexity.\",\n  \"sku\": \"CDN-KIT-1929\",\n  \"brand\": {\"@type\": \"Brand\", \"name\": \"Compoden\"},\n  \"offers\": {\n    \"@type\": \"Offer\",\n    \"url\": \"https:\/\/compoden.in\/products\/kit-hc-12-long-range-serial-link\",\n    \"priceCurrency\": \"INR\",\n    \"price\": \"2340\",\n    \"availability\": \"https:\/\/schema.org\/InStock\",\n    \"seller\": {\"@type\": \"Organization\", \"name\": \"Compoden\"}\n  },\n  \"category\": \"Communication \u0026 Networking\"\n}\n\u003c\/script\u003e","brand":"Compoden","offers":[{"title":"Clone","offer_id":53469295608173,"sku":"CDN-KIT-1929-CL","price":3490.0,"currency_code":"INR","in_stock":true},{"title":"R3 Original","offer_id":53469295640941,"sku":"CDN-KIT-1929-R3","price":5760.0,"currency_code":"INR","in_stock":true},{"title":"R4 WiFi","offer_id":53469295673709,"sku":"CDN-KIT-1929-R4","price":5120.0,"currency_code":"INR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0999\/3997\/5533\/files\/kit-hc-12-long-range-serial-link.png?v=1781947427","url":"https:\/\/compoden.com\/products\/kit-hc-12-long-range-serial-link","provider":"Compoden","version":"1.0","type":"link"}