基于51单片机的DHT11温湿度传感器的温湿度测量报警系统，通过三个按键设置温湿度报警上下限，并存储设置值于eprom中，在LCD1602上显示温湿度值，通过蜂鸣器进行报警。-51 microcontroller-based temperature and humidity sensors measuring temperature and humidity DHT11 alarm system, via three buttons set upper and lower limits of t