DHT11温湿度数码管可设置上下限报警

上传者: z1512751703 | 上传时间: 2021-04-26 08:46:47 | 文件大小: 202KB | 文件类型: RAR
51单片机开发板用的是普中科技的某一款,资源中附有原理图,传感器用的是DHT11温湿度传感器,显示用的还是其上的数码管,可用其上的矩阵按键设置温湿度上下限,然后超出后蜂鸣器(无源的)报警。

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