Here is an artistic Arduino project for the fun-minded. The circuit is an Arduino RGB LED controller running on a sweet ‘n’ simple code,but with a little hardware surprise outside the Arduino board.

PWM controls the the brightness of each of the LEDs. Roughly, every 1/500th of a second, the PWM output will produce a pulse. The length of the pulse is controlled by the analogWrite function.

Building IoT projects with touchscreens used to be a headache, involving numerous components, messy wiring, and endless troubleshooting. But the ESP32-S3 Box-3 makes things way easier. It is an all-in ...

This Arduino project uses a 10k potentiometer to control an RGB LED, smoothly transitioning colors through red → orange → yellow → green → cyan → blue → purple.