Display your heart rate over Bluetooth using CircuitPython and NeoPixels.

Complete your Cosplay character with this glowing magical item.

This project uses the accelerometer and the NeoPixels on a Circuit Playgrounds to sense braking and then indicate that the bike is slowing down.

This guide will show two ways to build a hand washing timer that will help you scrub your hands with soap for a full 20 seconds with confidence.

This guide shows how to modify a piñata so it can be reused and programmed to respond, when hit, with sound effects, pre-recorded taunts, or to release candy.