我们小组做了自动温度测试仪。该仪器可以设定报警温度，如果测得温度在报警温限之内则绿灯闪亮，如果测得温度在报警温限以外则红灯闪亮并且发出声音报警。该仪器可以用于工厂、医院等对温度环境有要求的地方，以免由于温度而产生意外情况。

　　在这个测试仪中，微控制器采用了Microchip公司的PIC16F877，设计中涉及到液晶显示器的驱动与使用，4×4键盘的驱动与使用，高精度数字温度测量器件DS18b20的驱动与使用，还对板载发光二极管，喇叭等器件进行了使用。-　　We made a system that can measure temperature and give an alarm. You can input two numbers as alarms. If the temperature that the system measure is proper, the green light will work. If the temperature is not proper, the red light will work and the speaker will work. This system can be used where temperature is important to avoid accident like factory, hospital and so on.

　　In this system, we use the Microchip corp.--PIC16F877 as the microcontroller. The design includes the drive of a lcd device ,the drive of a 4×4 keyboard ,the drive of the high precision digital thermometer DS18b20. We also used some light emitting diodes and drove a loudspeaker.