Complete beginner here, trying to learn... I am trying to use a normally closed push button to change the state of a relay each time the button is pushed and released. I'm trying to do this by taking the 'contacts closing' event (on pin 2) to switch power on or off to pin 12. I started with the bas…

Switching a relay on & off using a momentary push button

system August 23, 2012, 7:07pm 3

Why is the relay connected to analog pin 12? Analog pins are input only. You can't perform a digitalRead on an analog pin.

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