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How to Use Multiple Buttons on a Single Arduino Pin – Smart Pin-Saving TrickRunning out of GPIO pins? Learn how to connect multiple buttons to just one Arduino pin using clever wiring and resistor ...
If you’ve run out of I/O pins on a project and need a way to add user input you can find a slew of port expanders that work with various communications protocols like I2C and 1-Wire. But if y… ...
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