This Serial Bluetooth brick is an easy to use module, designed for transparent wireless serial connection setup. This 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 will simplify your overall design/development cycle.
Connect the + pin to 5v and – pin to GND. The TX RX pin connect to the serial pins.