This project shows how a potentiometer (variable resistor) can be used to control the brightness of an LED. The Arduino reads the analog value from the potentiometer and uses PWM (Pulse Width ...

This project is a simple LED dimmer circuit that uses Arduino's PWM (Pulse Width Modulation) capability. The user can smoothly adjust the brightness of an LED using a potentiometer or digital input.

Potentiometers are one of the most common input devices you’ll find in electronics projects. They’re often used to control things like audio volume, screen brightness, or even robot speed. In this ...