空调温度自动控制（lcd显示+上下限可设置）采用80C51+1602+AD590+ADC0809

本程序可以实现温度测量，在lcd1602上显示温度值，且可以通过按键设置温度上、下限-This program can be realized in lcd1602 temperature measurement, and can be displayed on the temperature, temperature, through the button

温度可调上下限,ds18b20测温，LCD1602显示，独立按键调节上下限-Temperature adjustable upper and lower limits, ds18b20 temperature, LCD1602 display, separate buttons to adjust upper and lower limits