The Circuit Playground Express is equipped with 10 NeoPixel LEDs that can be controlled with code to create tons of cool visual effects. In this guide, you will learn the various ways to use the Microsoft MakeCode editor to use those LEDs. The guide also covers how to use additional NeoPixel strips.
The show ring block lets you choose the colors of the 10 LEDs. You can find it find under the
You use multiple
show ring blocks to create basic animations. The example below is a blinking siren animation that repeat in a forever loop.