This project creates an automatic cheering device that will play an MP3 of a crowd cheering loudly every day at 7 PM. Even if you can't be around at the right time, this device will remember for you and participate in the collective celebration of healthcare workers on your behalf. This project is designed around the Feather system of boards and can be easily modified to play any MP3 of your choice, and to go off at any time of day.

This prototype open-source face shield is based on a design originally published by Prusa Research can be created using a 3D printed headband and laser-cut or hand-cut clear plastic shield. We cover a few ways you can make these based on the tools you have available.

Need to quickly test a lot of custom boards? Time to build a testing jig! This guide takes you through the basics of soldering pogo pins straight and adding other necessary testing components to your test jig.

This project uses a laptop's built-in camera to identify various cereal and marshmallows. The computer then sorts them based on a model you train. A Circuit Playground Express communicates with the computer to decide when to sort which marshmallow/cereal via a micro servo.

Take any short clip of music and have it automatically start playing as soon as you pick up your cane and start walking. A few lines of code add illumination to a custom face plate of your design, making the walking stick a gleaming beacon as well as a magically musical object.

Smash that button and your desktop dumpster erupts into flames. A Circuit Playground Express board paired with one servo and one DC motor make this dumpster spring to life, and is easily reprogrammed in MakeCode to take on different functions. A great beginner project, no soldering required!

This robotic candy bucket shoots out a small receptacle to retrieve candy and bring it back into the bucket. Two servo motors powered by a Circuit Playground Express coded with MakeCode powers this project.

This sword's design is inspired by the Obsidian Sword in Cartoon Network's animated series "Steven Universe". The sword is made out of cardboard, ringed with lights, and has a touch sensitive handle, illuminating the lights as soon as you pick up the sword.

Hold this heart in your hand and it automatically detects your heart rate and begins to glow, pulsing in time with your heart. A Circuit Playground Express tucked away inside a 3D printed anatomical heart model uses its onboard light sensor to determine your heartbeat and illuminate a strip of neopixels to match it.

This 3D printed heart beats rhythmically, powered by a servo motor and Circuit Playground Express. This spooky installation is ready to freak out your next guests!

This DIY cardboard shark helmet is equipped with a Circuit Playground Express and a servo motor, enabling it to detect sound and start moving its jaw in response! Fun beginner coding project, great for shark week or Halloween!

This vertical take on the ever-popular wordclock spells out the time by illuminating rows of words. Reading from top to bottom, any five minute increment of time can be spelled out. This project uses a laser engraved piece of acrylic paired with a cardboard stand and is lit by a strip of NeoPixels powered by a Feather M4 Express board.

This project uses the accelerometer on Circuit Playground Express to control the x and y axes of a maze, allowing the user to guide a marble through the maze by simply tilting the Circuit Playground Express board. This project is constructed using only cardboard, hot glue, and a couple screws.

This fish is built using scrap recyclable materials integrated with Circuit Playground Express and a servo motor to animate the fish and control a strip of NeoPixels. This fish makes an excellent chandelier, swimming peacefully through the air.

The Archimedean screw has been used to pump and lift water since antiquity. In this project the water screw is used to propel a boat, and can be programmed to go forward, reverse, turn right or left using MakeCode. This project uses easily available household materials and serves as a great introduction to block-based programming.