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Arduino Buzzer Frequency Controller with Push Buttons This project demonstrates how to control the frequency of a buzzer using push buttons with an Arduino. The buzzer frequency can be increased or ...

void loop () { for (int i = 0; i < 4; i++) { digitalWrite (leds [i], digitalRead (buttons [i]) == LOW ? HIGH : LOW); } } 📋 Steps to Run 1️⃣ Build the circuit as shown in the diagram. 2️⃣ Connect the ...

The OONTZ uses a 3D printed case, a 16 button keypad, an Arduino Leonardo, a monochrome driver, and a few potentiometers. It's actually a pretty simple thing to build yourself provided you can the ...