BMT Bluetooth Transceiver Module - HC-06 (Slave Module)

The HC-06 Bluetooth Transceiver Module is a slave-only wireless serial communication module designed for simple and cost-effective Bluetooth integration with microcontrollers like Arduino, 8051, AVR, PIC, ARM, and MSP430. It enables wireless serial communication between two devices using the Bluetooth 2.0+EDR standard.

This module is particularly popular for wireless data transmission, robotics, sensor modules, and DIY electronics projects, providing UART-based communication over short distances (up to 30 feet).

Key Features

• Uses the HC-06 Bluetooth slave module core.
• Compatible with 3.3V logic level, supports direct connection with 5V microcontrollers (no level shifter needed).
• Built-in 3.3V LDO regulator on the backplane; input voltage: 3.6V - 6V (Do not exceed 7V).
• Bluetooth connection status shown via onboard LED indicator:
  Flashing: No Bluetooth connection
  Solid ON: Connected and serial port is open
• Pins broken out for easy connection: VCC, GND, TXD, RXD (LED status pin reserved).
• Default baud rate: 9600 bps, 8 data bits, 1 stop bit, no parity (9600,8,1,n).
• Automatically adjusts current consumption:
  ~30mA when not connected
  ~10mA when paired
• Supports communication with all standard USB Bluetooth adapters.

Technical Specifications (Bullet Points)

• Bluetooth Chipset: HC-06 (slave mode only)
• Bluetooth Version: V2.0 + EDR
• Default Baud Rate: 9600, 8 data bits, 1 stop bit, no parity
• Operating Voltage: 3.3V logic (can accept input voltage of 3.6V - 6V)
• Input Voltage Range: 3.6V to 6V (absolute max = 7V)
• Communication Interface: UART (TXD, RXD)
• Power Consumption:
  ~30mA (idle, not paired)
  ~10mA (paired)
• Signal Range: Up to 30 ft (approx. 10 meters)
• Onboard Regulator: 3.3V LDO for safe microcontroller interfacing
• Status LED: Connection indication (flashing = searching, solid = paired)
• Footprint Dimensions: approx. 3.5 cm × 1.5 cm
• Cable Length (if applicable): approx. 21.5 cm
• Material: Plastic (multicolor PCB may vary by batch)

Usage Notes

• Connect directly to Arduino or other 5V logic microcontrollers via UART (no need for logic level converter).
• Works in slave mode only, cannot initiate pairing.
• To change settings like baud rate or name, use AT commands (via serial communication).
• Avoid exceeding 7V input to prevent damaging onboard voltage regulator.

Applications

• Wireless communication for Arduino and embedded systems
• Bluetooth-based home automation
• Wireless robot control
• Serial data logging over Bluetooth
• Mobile-controlled electronics projects
• Remote sensor modules

What's in the box
x1 BMT Bluetooth Transceiver Module - HC-06