KS0174 keyestudio HM-10 Bluetooth-4.0 V2
http://www.amazon.com/keyestudio-HM-1...
keyestudio HM-10 Bluetooth-4.0 V2 adopts TI CC2541 chip, configuration space of 256Kb . It supports AT command. Users can modify working mode (master/slave), baud rate, device name, paring password etc.