This shield have extract the VCC, GND, TXD, RXD of the bluetooth. (TXD, RXD are both 3.3V)
This shield have LED indication light.
Input Voltage: 3.3V*6V
Size: *5.2mm**5.7mm
Features:
This module power supply is 3.6 ~ 6V, please be careful that it should be not more than 7V, this Bluetooth Module Baseboard can be compatible with master mode, slave mode and both master-slave mode.
This module include key interface and state interface compared with Smart Bluetooth Module Baseboard
The key interface on the baseboard is the master mode and can be controlled by high level from external MCU, then this module will search again automatically.
The STATE interface on the baseboard is interface for LED STATE output feet, when bluetooth module don't not connected with other device and then output pulse, when bluetooth module connected with other device and then output high level, and the MCU will judge the state, then this module will search again automatically.
Click to download the Smart Bluetooth Shield schematic diagram