■基本范围-55℃-125℃

■精度误差小于0.5℃

■LED数码直读显示

■温度高于35℃启动风扇降温，低于34℃ 停止风扇

■可以任意设定温度的上下限报警功能

　

本方案考虑到使用温度传感器，在单片机电路设计中，大多都是使用传感器，所以这是非常容易想到的，而温度传感器有数字和模拟之分，但使用数字温度传感器更加方便直接，因此可以采用数字温度传感器DS18B20，此传感器可以很容易直接读取被测温度值，进行转换而直接得到数字温度量，就可以满足设计要求。-■ basic range-55 ℃-125 ℃

■ precision of less than 0.5 ℃

■ LED display digital direct-reading temperature higher than 35 ℃

■ start cooling fan, the fan stops lower than 34 ℃

■ temperature can be arbitrarily set the upper and lower alarm program



Taking into account the temperature sensor, the microcontroller circuit design, most are using the sensor, so it is very easy to think, and temperature sensor with digital and analog of the points, but more convenient to use digital temperature sensor directly, it can use digital temperature sensor DS18B20, this sensor can be easily read directly measured temperature, conversion and digital temperature measurements directly, it can meet the design requirements.