HC-06 Wireless Transmission Module

The HC-06 Wireless Transmission Module is a low-cost Bluetooth module designed for serial communication using the Bluetooth 2.0 standard. Unlike its counterpart, the HC-05, which supports both Master and Slave modes, the HC-06 operates exclusively in Slave mode. This means it can only accept connections from other Bluetooth Master devices, such as smartphones, PCs, or other Bluetooth modules. It is commonly used in applications like wireless data transmission, IoT, robotics, and home automation, where simple Bluetooth communication is needed.

Specifications

• Bluetooth Version: Bluetooth 2.0 + EDR.
• Operating Voltage: 3.6V to 6V (typically 5V for most microcontroller applications).
• Current Consumption:
  • Idle/Connected Mode: ~8mA.
  • Data Transmission Mode: ~30mA.
• Range: Up to 10 meters (in open space).
• Communication Interface: UART (TX/RX).
• Baud Rate: Default is 9600 bps (configurable via AT commands from 1200 bps to 1382400 bps).
• Data Transfer Rate: Up to 3 Mbps (Enhanced Data Rate).
• Antenna: Built-in PCB antenna.
• Operating Temperature: -20°C to 75°C.