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Adabot Operation Game
Your turn to operate! Perform surgery on Adabot, but be careful not to touch the sides or the buzzer will sound!!!
by John Park
Use the Circuit Playground Express programmed with CircuitPython or MakeCode to detect capacitive touch at each "incision" point. Touch the copper tape edges with your tweezers while trying to extract a part and the buzzer will buzz and the NeoPixel ring will light up red!!
FEATURED
Adafruit IO Environmental Monitor for Feather or Raspberry Pi
Build an internet-enabled environmental monitor to see what's in the air you breathe using Arduino or CircuitPython
by Brent Rubell
Knowing what's in the air you breathe is important. That's why we built an air quality monitor - to help you visualize the invisible qualities of the air you breathe into your lungs. We also integrated the air quality monitor with Adafruit IO for remote monitoring using a dashboard.
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Adafruit Hallowing
This is Hallowing..this is Hallowing... Hallowing! Hallowing!
by lady ada
Are you the kind of person who doesn't like taking down the skeletons and spiders until after January? Well, we've got the development board for you. This is electronics at its most spooky! The Adafruit HalloWing is a skull-shaped ATSAMD21 board with a ton of extras built in to make for an adorable wearable, badge, development kit, or the engine for your next cosplay or prop.
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Circuit Playground Express Automatic Sunglasses
Use one pair of glasses for normal, bright, and dark conditions, controlled by a Circuit Playground Express
by Dave Astels
Take a pair of glasses, some flip up shades, a Circuit Playground Express, and a micro servo. Put them together to make a pair of glasses that automatically flip down the shades and turn into a flashlight depending on how bright the light is around you.
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Make It Switch
When your microcontroller needs to accurately read if a switch is flipped
by Mike Barela
Many people look to incorporate switches with their microcontroller projects. Here is the guide that will help you do that with the tricks of the trade. Make your externally switched project today.
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LEGO Compatible Battery Case
3D print a battery case for LEGO robotics projects
by Ruiz Brothers
A snap fit case for housing a 3xAA battery holder.
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Circuit Playground Express Serial Communications
Communicate to other electronics via serial on your Circuit Playground Express
by Mike Barela
Serial communications, be it USB or TTL serial, is pervasive for communications in today's electronics world. This guide shows you various methods to communicate to and from serial devices with Circuit Playground Express.
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Make It Log
Log your Circuit Playground Express data directly into a spreadsheet
by Mike Barela
The modern scientist has exchanged their notepad and manual readings for automated readings into a computer spreadsheet. Here a Circuit Playground Express logs its data via simulated keyboard into your computer spreadsheet.
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Neon LED Signs
Make your own neon-style signs with LED "neon" strips. Animate the sign with a Metro M0
by John Park
Use MakeCode or CircuitPython to code the animation of multiple "neon tubes" connected to the Metro M0 and an 8-channel Darlington driver. Mount it into an enclosure with buttons to turn the sign on and off and to start and stop the blinking!
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Alternative languages for programming the SAMD51 boards
You can program the new SAMD51 boards in Makecode, C++, and Python. How about Lisp or Forth? Why not?
by Dave Astels
This guide will introduce you to lisp and Forth and how to get them up & running on your SAMD51 based Feather, ItsyBitsy, and Metro boards.
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Infrared Hand Gesture Robot Control Glove
Control a Circuit Playground Express based robot with your hand motions and another Circuit Playground Express.
by Dave Astels
What could be cooler that controlling a robot using just hand positions? This project shows how to do just that using the IR capabilities of the Circuit Playground Express: one on a glove and one controlling a robot. It's almost like using The Force.
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CircuitPython 101: Functions
Exploring functions in CircuitPython
by Dave Astels
You might not have had to write any functions yet. But you've used plenty of them. This guide explores functions in CircuitPython: why you want them, how to make them, and how to get the most out of them.
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Rack and Pinion Bot
Make a reciprocating rack pinion mechanism that moves round and round!
by Ruiz Brothers
Use 3D printing, a DC gear motor and the CRICKIT robotics platform to make a kawaii monster. This reciprocating rack and pinion mechanism makes it side step!
FEATURED
Sensor Plotting with Mu and CircuitPython
Plot all the things!
by Kattni Rembor
Mu is an amazing editor that works with CircuitPython and compatible boards. You can connect to the serial REPL right inside the editor. It also includes a plotter the works with your code to give you a live visual graph of your data! This guide will show you different ways to use the plotter with different sensors. It's time to plot!
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Crickit Harmonic Drawing Machine
Create beautiful complex harmonic curves with this drawing robot!
by John Park
Use LEGO and Crickit to drive this harmonic curve drawing robot. Two rotating drives running out of sync transmit motion to the pen mounted on your Technic beam pantograph.
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Circuit Playground Express Sugar Glider
Use MakeCode and the accelerometer to operate a pair of glider wings.
by Dave Astels
Make a descent vehicle for your Circuit Playground Express that JPL would be proud of. OK, maybe not quite that, but it's a cool application of the accelerometer and a couple servos.
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Make It a Mouse
Turn your Circuit Playground Express into a computer mouse
by Mike Barela
Care to build a project moving a mouse for assistive technology? Or maybe a prank or "keep alive" mouse jiggler program? Programmatically control the cursor with your very own mouse device.
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Make It a Keyboard
Use a Circuit Playground Express to emulate a keyboard
by Mike Barela
Emulating a computer keyboard opens up a great many project designs - for practicality, assistive technology, or maybe just for a bit of fun. Using Microsoft MakeCode or CircuitPython, this guide will get you started easily designing devices with the Circuit Playground Express.
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Crickit Paddle Wheel Boat
Build a water rover with Crickit and Circuit Playground Express
by Ruiz Brothers
Make a Crickit powered water rover! Use 3d printing and makecode to build a boat with a camera attachment for research and photography!
FEATURED
Hello World of Robotics with Crickit
Starting out in robotics, get up and running in a single setting with Adafruit Crickit and Circuit Playground Express
by Mike Barela
Robotics has often been a lot of work. With modern hardware and software, it is now possible to get up and going quickly in a single sit-down, in as little as 15 minutes. Using Adafruit Circuit Playground Express with Crickit, you can actually have a movement + sound project running quickly with a satisfying sense of accomplishment.
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Zombie Tag Game with Circuit Playground Express
Play infrared zombie tag with Circuit Playground Express and CircuitPython or MakeCode!
by Kattni Rembor
You're a human! Right? For now anyway... There's a red pulsing in the distance... NO! A ZOMBIE! You're losing health, but what's this? A white pulsing from around a corner, a healer! You'll stay human for a little longer... We've written up a fun game for you to play with Circuit Playground Express and CircuitPython or MakeCode. Hopefully you'll be a human long enough to check out this guide!
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CRICKIT Snake Bot
A CRICKIT based robot snake that can make it's way around a space.
by Dave Astels
Use a CRICKIT robotics board to build a robot that can maneuver around a space by interacting with its environment.
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Talking Musical NeoPixel Clock with Infrared, BLE and Touch Controls
Use a 60 NeoPixel ring and Feather M0 to build this stylish clock with options for music, BLE, infrared, and touch controls.
by Chris Young
This stylish neo-pixel clock is built with a Feather M0. You can make it talk, play music, play chimes, and play animation patterns. You can also set the time and control options using an infrared remote, Bluefruit Connect app, or touch controls. The guide includes a 3D printed case design where you can create your own custom case out of cardboard, wood or any other material.
FEATURED
The Scream: Interactive Screaming Painting
Scream at The Scream and The Scream screams back!
by John Park
Using sound level sensing to detect your screams, the Crikit and Circuit Playground Express control the servo-driven head shaking and amplified wave file playback of the existential scream in return, just as Edvard Munch would have wanted it.
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Make It Sense
Get started quickly with the sensors on the Circuit Playground Express
by Mike Barela
You're ready to use the cool sensors on Circuit Playground Express. Here is the code in CircuitPython and MakeCode to get you started quickly building your projects.
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Circuit Playground Express Treasure Hunt
Where are those hidden Circuit Playground Express treasures?
by Carter Nelson
Create a fun hide and seek style game using multiple Circuit Playground Express boards and learn about using the IR transmitter and receiver.
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LEGO Crickit Rover
Make a two wheeled robot
by Ruiz Brothers
3D printed parts and lego bricks come together!
FEATURED
Glowing Slime Lunchbox
Make glowy slime for fun projects!
by Ruiz Brothers
Learn how to whip up a batch of slime and make them glow with Circuit Playground Express.
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Android GBoard Morse Code Control with Circuit Playground Express
Use morse code to control your Android phone with this project, no soldering required!
by Dave Astels
GBoard is an alternate keyboard for Android Devices that lets you type using Morse code. This has seen use for people with limited mobility, but it can also be useful for practicing your morse code skills. The goal of this project is to build a simple input device for GBoard that doesn't require soldering or elaborate construction techniques. We'll be using a Circuit Playground Express to build this project. We have a few different versions we'll be demonstrating - from the simplest using the two onboard buttons, to using capacitive touch inputs, to connecting up some alligator clips to big-and-easy-to-press arcade buttons.
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Infrared Receive and Transmit with Circuit Playground Express
Send and receive messages using IR with your Circuit Playground Express!
by Kattni Rembor
Circuit Playground Express has the ability to transmit and receive IR signals. You can use CircuitPython to send and receive messages using IR. This guide covers the basics of Circuit Playground Express IR and shows you how to use CircuitPython to communicate between two Circuit Playground Expresses!
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Crawling Baby Sea Turtle Robot
Get this baby sea turtle safely to the ocean!
by Dano Wall
Build a robotic baby sea turtle that pulls itself along with its flippers. This project demonstrates beginner robotic skills and pairs electronics with household recyclable materials.
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Make It Sound
Add sound quickly to your Circuit Playground Express and Crickit Projects
by Mike Barela
Move over, little rover - modern microcontrollers are capable of all kinds of sounds: from simple beeps to musical notes and wave files. Add this code to your next project for some fun.
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Make It Plot
Visualize your data in real time on your computer screen
by Mike Barela
There is nothing like seeing your data plotted to get a sense of what is happening over time. You can easily and quickly plot your data using CircuitPython and the Mu editor or use the MakeCode App for Windows 10.