蓝牙串口协议,定义了蓝牙串口通讯的规范，对于蓝牙开发人员不可多得的资料。-bluetooth SERIAL_PORT_PROFILE

Serial ports on embedded systems often provide a 2-wire communication channel only.

点菜宝与PC之间的连接测试工程，主要是检测程序与WX之间和WX与点菜宝之间的通讯。-Order Po with PC the connection between the test project, mainly between detector and WX and WX communications between order and treasure