{"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, cards, or Cash on Delivery, anywhere in India.\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). 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 typically takes 3–7 business days depending on your location.\n\u003c\/p\u003e\u003c\/details\u003e\n\n\u003cscript type=\"application\/ld+json\"\u003e\n{\n  \"@context\": \"https:\/\/schema.org\",\n  \"@type\": \"Product\",\n  \"name\": \"HC-05 Wireless Bluetooth Module without Base Plate\",\n  \"description\": \"HC-05 Wireless Bluetooth Module for serial wireless communication. Supports master and slave modes. 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