JB6321-30B1 Bluetooth Module

Main advantages
1、V5.0+BR+EDR+BLE specification
2、Provides +8dbm transmitting power
3、UART or OTA firmware upgrade
4、One IIC interface supports host and device mode
5、Serial port command for applications
Summary
The Module JB6321 has a notable merit that its firmware supports concurrent Bluetooth SPP and GATT connections. It establishes a Bluetooth bidirectional communication channel which is between the application MCU and the mobile phone through the UART interface. The application MCU can send a corresponding command to enable the Bluetooth module and to set it into different modes, then to send and receive communication data at the SPP or GATT level.The MCU can also read the mode status of the module through serial commands.