Bluetooth Module HC05


HC-05 is a Bluetooth module which is designed for wireless communication. This module can be used in a master or slave configuration.

  • It is used for many applications like wireless headset, game controllers, wireless mouse, wireless keyboard and many more consumer applications.
  • It has range up to <100m which depends upon transmitter and receiver, atmosphere, geographic & urban conditions.
  • It is IEEE 802.15.1 standardized protocol, through which one can build wireless Personal Area Network (PAN). It uses frequency-hopping spread spectrum (FHSS) radio technology to send data over air.
  • It uses serial communication to communicate with devices. It communicates with microcontroller using serial port (USART).


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