用Keil编写的在STC12C5410AD单片机端使用的程序，通过UART转232通讯接收来自PC串口的控制信号，实现电动小车特定PWM、前进、后退等动作响应，这个是在单片机下运行的程序，PC端程序请看“TalkToCar-PC”-Keil prepared using single-chip client in STC12C5410AD the procedures used by UART to switch 232 to receive communications from the PC