Using Reed magnetic switch with Arduino and Relay

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this video shows you how to use reed switch with relay to detect door or window opening to turn on ligh or Alarm using a relay. • You will learn how to use it without Arduino and with Arduino. • Get early access to my videos via Patreon and have your name mentioned at end of very videos I publish on YouTube : http://robojax.com/L/?id=97 • download code from : • http://roboJax.com/learn/arduino

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