3Pcs HC-05 Wireless Bluetooth Serial Transceiver Module For Arduino
Description:
HC-05 could be setted to master or slave by user. HC-06 can only be master or slave which could be customized.Wiring(only need 4 wires): RX to RXD \/ TX to TXD \/ GND to GND \/ 3.6V to 6VPower: 3.3V
Package included:
3 x HC-05 wireless bluetooth serial transceiver module