Hi. Im looking for some kind of sensor of two parts that i can read two values from the arduino: 1 or 0, being 1 the value when those two parts are in contact and 0 when those parts are not in contact. I feel that this is very simple to achieve, even with two copper terminals but i cant think of ho…

[image] gzanotto: Any suggestion? If you did use two pieces of metal, you could wire one to ground and the other to an input pin and use digitalRead() just ,ike it was a switch. And just like if it was a switch, you'd want to use a pull-up resistor or pinMode() INPUT_PULLUP. So simpleit see…

Does something like a contact sensor exists?

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cedarlakeinstruments February 18, 2024, 8:22pm 3

That "sensor" is more commonly referred to as a switch!

Or are you saying that you have no idea how to read the status of a switch with an arduino?

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Does something like a contact sensor exists?

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