The Micro Switch, short for miniature snap-action switch, is an electric switch actuated by very little physical force, using a small snapping mechanism made with two split springs. Microswitches are available in a variety of terminal variations of sizes and shapes.
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How to wire Micro Switch with Arduino Uno
How to wire Micro Switch with NodeMCU
How to wire Micro Switch with Arduino Pro mini
Product page on Digi-Key Electronics
The micro switch is a mechanical device used to open or close connections in an electrical circuit.
It has 3 terminals:
In its non activated state COM is connected to NC.
