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switches - 5 pin push button switch with LED AC wiring question - Electrical Engineering Stack Exchange
8051 Digital Input
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5Pcs 12V 24V 12mm Waterproof ON Off Latching Push Button Switch with Wiring Harness and Led Indicator Light, Pre-Wired SPDT Self-Locking 4 Pin Marine Metal Switch for Boats Cars Truck (Blue): Amazon.com:
5imple Circuits: How to use a push button - YouTube