Bluetooth HC-05
HC-05 module is an easy to use Bluetooth SPP(Serial Port Protocol)module, designed for transparent wireless serial connection setup.
Serial port Bluetooth module is fully qualified Bluetooth V2.0+EDR (Enhanced Data Rate) 3Mbps Modulation 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.Hope it will simplify your overall design/development cycle.
Specifications
Typical 80dBm sensitivity
Up to +4dBm RF transmit power
Low Power 1.8V Operation ,1.8 to 3.6V I/O
PIO control