4 Pin Button Schematic
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The Four-Pin Switch: Hooking it up
Hack kit series: closer look at push buttons – blog.wildernesslabs.co » 4-pin buttons on arduino The four-pin switch: hooking it up
Pinout wiring hack above
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Controlling lcd from push button using arduino
Hooking electrically pressed connectedArduino pinout pins connected internally therefore pairs .
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