通过电加热电路对水进行加热，并对水的温度进行采样，采样信号通过ADC0809将数字量送入单片机系统，经微机处理后，结合键盘控制实现LED显示，并可实现对水的温度的控制和超过水温的报警系统。-Through the electrical heating circuit for heating the water, and the temperature of the water sampling, sample the digital signal is sent through the ADC0809 SCM system, the computer processing, the control achieved with the keyboard LED display, and can realize the control of water temperature and over temperature alarm system.