A better bluetooh module than the BR-630.
This one is very stable and works fine with saber apps like :
ForceSync and Crystal FX.
Verified working with Crystal Focus X and Proffie board.
1 Bluetooth Low Energy (BLE 5.1)
2 Supports up to 3 BLE connections
3 Handles UART, SPI, I2C
10mm x 11.9mm