芯达STM32开发板的串口2测试程序，希望对大家有帮助。-Core of the serial 2 STM32 development board test program, we want to help.

1,通过STM32的USART2连接ATK-HC05蓝牙模块,检测并显示蓝牙模块的状态. 2,通过KEY0按键可以开启/关闭定时向ATK-HC05蓝牙模块发送数据(ALIENTEK HC05 xx)测试蓝牙模块的数据发送. 3,可以通过WK_UP按键设置ATK-HC05蓝牙模块的主从工作模式.-1, ATK-HC05 Bluetooth module connected through the STM32 USART2, detects and displays the status o

基于STM32平台实现串口收发功能，帮助构建新的项目(Realizing the function of serial port and sending)