Bluetooth to UART bridge chip
1)WCHBleLib_MultiOS------The BLE development interface library for Windows, Android, Liunx, iOS platforms,
2)BLEAssist------BLE Debugging Tool for Android System,
3)BleUartLib------BLE serial interface library for some system platform,
4)BleComWin------Extend wireless serial port on Windows system or upgrade common serial port peripherals to wireless Bluetooth interface，
5)BleUartApp------this APP provides functions such as automatic search connection, opening and closing, serial port parameter setting, MODEM operation, serial port reading and writing of BLE serial devices, include Windows/Android/Linux/iOS/WeChat platform versions.