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PROJECT
44

Circuit Playground Bluefruit BLE Heart Rate Pendant with CircuitPython

By Adafruit Industries

Display your heart rate over Bluetooth using CircuitPython and NeoPixels.

PROJECT
26

Cosplay Floating LED Fireball with Motion Sensing

By Adafruit Industries

Complete your Cosplay character with this glowing magical item.

PROJECT
17

Circuit Playground Bluefruit Automatic Bike Brake Light

By Adafruit Industries

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

PROJECT
40

No-Touch Hand Wash Timer for Circuit Playground Express and CLUE

By Adafruit Industries

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.

PROJECT
13

Drama Piñata

By Adafruit Industries

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.