To setup Wireless Serial Communication, HC05 Bluetooth Module is most demanding and popular due to its low price and extremely high features.
This HC05 module can be used in Master or Slave Mode and easy switchable between these two modes, By default Slave mode is configured.
Modes can be changed using AT Commands.
The slave mode in HC05 cannot initiate a connection to another Bluetooth device, but can accept connections.Master mode can initiate a connection to other devices.
HC05 Specifications:-
Profiles: Bluetooth serial port Profile
Bluetooth protocol: Bluetooth Specification v2.0+EDR
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