HC-05 Bluetooth Serial Transceiver Module Slave And Master

HC-05 Bluetooth Serial Transceiver Module Slave And Master


HC-05 Bluetooth Serial Transceiver Module Slave And Master.
Note: Specifications, Prices & Availability may change without notice. Images are for illustration purposes only. E&OE

Availability: 4 in stock SKU: STC-00173 Categories: , Tag:


The HC-05 is a popular and easy to use Bluetooth wireless module that can be used as a master or slave by user.
Wiring(only need 4 wires): RX to RXD / TX to TXD / GND to GND / 3.3V to 3.3V
Power: 3.3V
Note: This module does not suitable for IOS system.

  • Wave band : 2.4GHz – 2.8GHz, SM Band
  • Protocol : Bluetooth V2.0
  • Power Class : (+6dbm)
  • Reception sensitivity: -85dBm
  • Voltage : 3.3V (2.7V-4.2V).
  • Serial module rating voltage 3.3v,can be directly connected to different kind of MCU (Arduno/51/AVR/PIC/ARM/MSP430 ect.), also can be directly connected the 5v MCU.
  • Current : Paring – 35mA, Connected – 8mA
  • Temperature : -20C~41.67C
  • User defined Baud rate : 4800, 9600, 19200, 38400, 57600, 115200, 230400, 460800, 921600, 1382400
  • LED indicates the Bluetooth connection status, fast flash stand for no connection, slow flash stand for AT mode, double flash stand for connect success
  • Base plate with anti reverse diode, have 3.3v LDO, unpaired current is about 30mA, paired is about 10mA, input voltage could not over 7V
  • Field effective distance is 10 meters(class 2)
  • Uses AT commands to switch to host or slave mode
  • You can use it simply for a serial port replacement to establish connection between MCU and GPS, PC to your embedded project and etc.
  • Lead out 6 pin : “STATE” “RXD” “TXD” “GND” “VCC (+5V)” “EN”
  • Default serial- port setting : 9600; The Bluetooth pairing code: 1234

Download The HC-05 AT Command Reference

Additional information

Weight3.69 g
Dimensions3.7 × 1.4986 cm



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