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170 GUIDES | 1028 PAGES | 0 FEATURED | 168 POPULAR

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.

Pushrod Garage

Build a cardboard garage with working garage door for your tiny cars or robots!

Using a Circuit Playground Express programmed with MakeCode, you can control a servo motor to swing open the door on your model garage! A pushrod mechanism made from a paperclip and cardboard mounting horn is the simple, yet effective method you'll use to make it all work.

Experimenting with Conductive Heater Fabric

Great for hyper color effects!

This non-woven fabric is highly conductive, but with a resistance of 20 ohms/square inch, will heat up when current is applied. Let's look at a few ways to connect to it, how to power it, and what you can do with it!

Internet of Things Infrared Remote

Control your TV, Cable box, DVD over Wi-Fi using IR output

Learn how to create an infrared remote to control your TV, Cable Box, or other device via a webpage over Wi-Fi. Layout your own custom pattern of buttons. Harness the power of an Adafruit Feather M0 Wi-Fi or Arduino MKR1000.

AM Radio Morse Code Paddle

Turn a Gemma M0 into a combination Morse code keyer and transmitter!

This transmitter sends dots and dashes at the touch of the paddle over the AM airwaves. Made from a Gemma M0, wires, nails, conductive fabric (or aluminum foil), and a block of wood.

CircuitPlayground Minecraft Gesture Controller

Move your body to play Minecraft!

Use the Circuit Playground Express to make a gesture controller for Minecraft or your other favorite computer games!

Secret Hollow Book Intrusion Detector

Build your own safe hidden in plain sight to store valuables -- and rig an intrusion detector with Circuit Playground Express!

This guide will show you how to make your own hollowed out book, and then show how to make a simple alarm with a Circuit Playground Express, or, even set up the Haven app on an old Android phone, just like Snowden would want you to!

How to Construct Crosswords & Word Searches

Use simple online tools and apps to make your own puzzles!

We've filled our custom crossword puzzle and word search with fun STEAM/STEM, high-tech, and Adafruit terms. You can make your own to share with your students, classmates, and friends!

Arcade Coin-Op

Add a coin acceptor to your RetroPie arcade cabinet!

Have you built a Picade or other retro cabinet and want to be able to insert coins to play? Add this programmable coin acceptor and you'll be able to relive the glory days of the arcade!

Giant Mechanical Keyboard

Make a huge keyboard to kill programs!

by C. Cunningham

Why settle for a single PANIC button? Make a giant three-button mechanical keyboard to kill rogue applications. Very satisfying!

Custom Milled PCB Pins

Make wearable art with your milling machine

by C. Cunningham

Turn your own custom designs into beautiful pins with a milling machine, paint, and epoxy resin.

Stream iPhone Sensor Data to Adafruit IO

Send iPhone sensor data to Adafruit IO!

by Trevor Beaton

In this guide, I'll take you through the steps necessary to stream your iOS iPhone or iPad sensor data to Adafruit IO using the Swift programming language. iOS mobile devices contains a handful of sensors such as Gyroscopic sensors, a Barometer, Magnetometer and much more. In this guide we'll be sending our Accelerometer sensor data to our Adafruit IO account feed. This guide doesn't require an extensive knowledge of Swift.

AtariFruit 2600 Joystick

Turn a classic Atari joystick into a wireless controller with the Feather nRF52 Bluetooth!

You can cut the cord on the CX-40 joystick and enjoy wireless gaming with this classic controller! Using an nRF52 Feather as a BLE input device, you can play games on any iOS device that uses the iCade standard. Or, code it to work with many other systems!

Arduboy Game Controller Hack

Build a full-scale arcade controller for your pocket-scale Arduboy!

An arcade joystick and buttons solder on to the Arduboy's test pads to bring cabinet-sized gameplay to the tiny, open source game machine! These methods can be used for assistive technology as well.

Joy Featherwing

Turn your Feather into a game controller!

A tiny joystick and buttons to put on your Feather board.

UFO Flying Saucer with Circuit Playground Express

Use the accelerometer tilt to control lights and sound on this fun flying saucer made with CircuitPython

By embedding a Circuit Playground Express in a UFO made from a kit, or 3D printing, or even craft supplies, you can create an interactive model fit for filming cheesy 1950s sci-fi scenes!

AdaBox 005

Explore and use the contents of your AdaBox 005

by Tyler Cooper

You've consumed four AdaBoxes - the equivalent of a delicious, nutritious meal of DIY electronics. And now it's time for dessert. Pour yourself some coffee (or a nice cold glass of milk) because it is finally time for Raspberry Pi.

Mini Pinball Table with Gemma M0

Use CircuitPython and the Gemma M0 to control iPad pinball built into an extruded aluminum mini table!

You can wire arcade buttons to the Gemma M0 which can be programmed in CircuitPython as a USB HID device (emulating keyboard strokes) to control any iCade compatible game on iOS! Plus, you can build your own stylish, rugged mini table using slotted aluminum extrusions and hardware! And, no soldering is required, just plug and play!

Echo 2-XL

GIve your Amazon Echo a new persona.

by C. Cunningham

Repurpose a classic toy robot as a new face and voice for Alexa.

Zelda Thunder Helm

3D Print A Precious Gerudo Heirloom for Link Cosplay

by Ruiz Brothers

The Thunder Helm is a piece of armor from The Legend Of Zelda: Breath Of The Wild.

NES Cart RetroPie Game Console

All-in-one game emulator/controller built inside a NES cartridge using Joy Bonnet and Raspberry Pi Zero!

The Pi Zero is a great machine, capable of running RetroPie to manage old school game emulation. The Joy Bonnet is a very simple, plug-and-play way to add just the right controls. But you need a case, so embed it in an old cartridge for style and the ergonomics of a better grip!

Pinball Controller for iPad

Make a pinball controller for your iOS device using Teensy

Virtual pinball is incredibly fun, but even more so with real, physical flipper buttons and a plunger. Use a Teensy in HID keyboard mode to send iCade-compatible commands to your iOS device over the Lightning connector.

The Humble Velocipede

Desktop walking machine

The Humble Velocipede is a small-scale adaptation of Theo Jansen's kinetic sculptures. This meditative toy is designed to scuttle over countertops with its human powered stride.

Mystery Box: Haunted Radio

Breathe spooky life into an old radio by adding a Feather microcontroller to read the dial and play mysterious sounds and music!

Vintage radios can be beautiful, but many are beyond repair. Here's a guide to repurposing it as an eerie playback device that uses the original tuner dial, power knob, and speaker and grafts on a Feather ESP8266 Huzzah with Music Maker MP3 FeatherWing that can play creepy sound effects, and trigger a specific song when intrepid guests tune the dial to a specific frequency. Muhuwahahahahahaha!

CNC Joy Bonnet Case

Learn how to CNC mill a wooden case!

by Ruiz Brothers

Go from CAD, to CAM! Make a case out of a block of wood to make a classic looking project.

Coffee Detonator: The TNT Plunger Grinder

Use a high-voltage AC power source to trigger a Feather microcontroller-driven coffee grinder.

This guide will show you how a magneto, generator, or other AC power source can be safely converted into a small DC signal easily read by an Arduino-compatible microcontroller. Then, the microcontroller can trigger a 120V relay to turn on any appliance!

CurieBot: Arduino 101 Mini Robot Rover

The powerful, 32-bit, Bluetooth enabled, three-layer robot of the future!

Build your own mini robot with the Arduino 101 board. This smart little 'bot contains a 32-bit Intel Curie module, Bluetooth LE capabilities, and a 6-axis accelerometer/gyro! Drive it with your phone, or turn over the controls to this capable robot's own decision making!!

Adafruit Joy Bonnet for Raspberry Pi

The cutest little gaming helper ever

by Phillip Burgess

Pocket-sized fun is the name of this game, with the Joy Bonnet - our most fun Bonnet ever (no we didn't even think that was possible, either!) This Bonnet fits perfectly on top of your Raspberry Pi Zero (any kind) and gives you adorable hand-held arcade controls. Once you install our script onto your Pi, the controls will act like a keyboard, for easy use with any emulator or media player.

Photo Light Box

Build an inexpensive, collapsable photo light box for beautiful project photography

Foam core, magnets, and small wooden blocks are all you need to make a great photo box for close-up object photography. You can even use the adjustable walls to block reflections on shiny objects.

Ninja Timer: Giant 7-Segment Display

Build a huge timer for an event or race. It's a digital segment display made from RGB NeoPixels!

Laser-cut acrylic is layered to create large, sharp, segments that are backlit by NeoPixel strips, and controlled with an Arduino. Huge buttons for start and stop are wired in over CAT5 network cable.

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