The Four-Pin Switch: Hooking it up
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HOW to use micro switch /4 pin micro switch /switch connected /push switch warking /#electronicsverm - YouTube
Small 4-Pin Tactile Button Switch
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Arduino: Pushbutton
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arduino uno - Newbie Question with 4 pin button - Arduino Stack Exchange
Large 4-Pin Tactile Button Switch
6x6x1 Push Button 4-Pin
4-pin Buttons on Arduino
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What is a 4 Pin Switch? - YouTube
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