D2F-FL Micro Switch
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.
Pros
- Reliable and durable
- Inexpensive
- Many sizes and shapes
Micro Switch circuits
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
Projects with Switches
Recycled Robotic Arm
Animatronic Tail
Home Security System
How does this component work?
The micro switch is a mechanical device used to open or close connections in an electrical circuit.
It has 3 terminals:
- NO - Normally Open
- NC - normally closed
- COM - Common
In its non activated state COM is connected to NC.