Below you can see a “CIE1931 Fade” Arduino sketch by Tom Igoe (https://tigoe.github.io). The sketch takes input from a potentiometer and produces a fair LED fade, using the CIE1931 perceived lightness ...

The Arduino fading tutorial that uses the program to fade the LED instead of the pot also uses a 220. I’m beginning to think that’s the one they meant to include with this kit but messed up.

You can fade out and fade in the light of an LED automatically by using Arduino and a simple code that is described below. Even though the Arduino board cannot output variable voltage on its digital ...

Connect pot pin 8 to Arduino pin 13; ... Once your buttons are tested, you’ll probably want to try out your LEDs. Grab the RGB_light_fade routine from the same page and upload it to your Arduino.

[RandomTask] is sharing a Larson scanner he built a few decades ago. These days you can whip one of these up using an Arduino in under an hour. He mentions this, but we agree that for nostalgic pur… ...