This is a SPDT Snap Action Micro Switch with a lever for actuating the snap action and the switch to work. It has three pins/legs, namely Common (C), Normally Closed (NC), and Normally Open (NO). This is SPDT Single Pole Double Throw switch and can be used as both NO Normally Opened Switch or NC Normally Closed Switch separately or simultaneously, depending on the application. The lever is used to press a tiny momentary push-button below it which will establish contact between Common (C) and NO terminals. The switches can be used to create bump sensors for robots or as limit switches in electronic appliances like microwaves, printers, Refrigerators, and Hospital Beds. It can also be used to determine the state of operation like whether the appliance is working or not.

How to use this switch depends on the application in which you want to use the switch if you want to send a trigger to alarm or counting mechanism when the lever is pressed, you should connect the terminals at C and NO terminals. If you want to break the connection to the circuit in event of pressing the lever, then use the C and NC terminals. It can be used even with your Arduino or Raspberry Pi, etc. microcontrollers to manually control the appliances you are using.
1×SPDT Snap Action Bump Switch
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