How does a 4x4 keypad work
Those 4x4 keypads are very common and ideal to use with an Arduino. I show you how they work and what are the basics to use it with an Arduino. Links Project Page: https://rohling-de.blogspot.com/2020/... 4x4 Keypad - https://amzn.to/2A7p5og Arduino Uno - https://amzn.to/3c1iLMl Breadboard & Jumpercables - https://amzn.to/3caWE6w #Maker #Arduino #Keypad

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