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Arduino+node+socketio+Ultrasonic
by 王文良 2019-05-14 10:09:17, Reply(0), Views(131)
Arduino:
距離感測
https://howtomechatronics.com/tutorials/arduino/ultrasonic-sensor-hc-sr04/

DHT11

http://blog.wingzero.tw/2013/05/arduino-detect-temperature-and-humidity.html


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