HC-05 module is an easy to use Bluetooth module, designed for transparent wireless serial connection setup.It can be used in master or slave configuration.Serial port is fully qualified Bluetooth V2.0+EDR (Enhanced Data Rate) 3Mbps Module with complete 2.4GHz radio transceiver and baseband. It uses CSR Bluecore 04-External single chip Bluetooth system with CMOS technology and with AFH (Adaptive Frequency Hopping Feature). It has the footprint as small as 12.7mmx27mm.
Supported baud rate: 9600,19200,38400,57600,115200,230400,460800.
are paired, red and blue led blinks 1time/2s in interval, while disconnected only blue led blinks 2times/s.