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How to Use Multiple Buttons on a Single Arduino Pin – Smart Pin-Saving Trick
Running out of GPIO pins? Learn how to connect multiple buttons to just one Arduino pin using clever wiring and resistor techniques. Perfect for compact projects, keyboards, or when using small boards ...
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Smartphone-Controlled Arduino Projects: Use Bluetooth and Wi-Fi for Wireless Communication
Looking for practical Arduino projects? This guide shows how to control a relay from your smartphone using an Arduino Uno — either via Bluetooth or Wi-Fi.