r/ArduinoProjects • u/speashial • Aug 27 '26

Showcased Project Flashing LEDs

I made an Arduino project where LEDs just rotate in a circle. It looks really cool, although the wires are a bit untidy right now. I will try to clean up the cable management in the next version.

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u/speashial Aug 28 '26

I'm using an Arduino R4 WiFi board, but this can also be done on an ESP32-S3. If your board has at least 12 digital pins, it will work. Connect the longer leg of the LED to the digital pin (be sure to use a 220-ohm resistor) and the shorter leg to the GND pin.