Configure HC-05 Bluetooth As Master and Slave

HC-05 Bluetooth Module is a wireless communication module that transmits data serially.

  • VCC pin of HC-05 is connected to +5V while
  • GND pin is connected to GND of the microcontroller.
  • EN is the Enable pin. It is used to configure the module in AP mode.
  • RX pin refers to receiver
  • TX pin refers to transmitter.

In some projects, there is need for communication between two Bluetooth Devices so that wireless data can be transferred . For communication between two Bluetooth devices, they must be configured as Master and Slave.

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