Uses a photo resistor to determine whether a room is bright, average or dark. It shows this using 3 LEDs and/or the serial monitor.

The LED sequencer is an easy project for beginners to learn how LEDs work.

Do you know of the famous WS1012 LEDs? The PL9823 is the cheapest LED that uses the same protocol of the WS1012. Let's blink LEDs!

Using Teensy (small Arduino) to power NeoPixels off of an electric skateboard battery.

Create your own code red button for use in simulation scenarios. Flashing LEDs and button!

Luminous ball, with clock and thermometer, controlled by Blynk.

Ten-year old nephews are particularly impressed when they can change the colour of the outdoor Christmas lights from a tablet.