基于C51的通用人机界面程序，控制器为atmel的89S52，含键盘，串口，lcd，蜂鸣器，温度传感器等通用模块，非常实用。-C51-based general-purpose man-machine interface process, controls for the Atmel 89S52, including keyboard, serial port, lcd, buzzer, temperature sensors, such as universal module, very us