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CIRCUIT PLAYGROUND
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Mystery Box: The Freefall Deck
When this deck of cards is tossed in the air, it reveals a secret audible Morse code message.
by John Park
Perfect for magic tricks, escape rooms, and slightly unorthodox birthday parties -- this seemingly innocuous, sealed deck of cards contains a secret. When the puzzle is solved, the deck is thrown in the air, tossed to a friend, or dropped a short distance. Freefall is detected by the Circuit Playground embedded within, and it beeps a secret Morse code message.
Adalight for Circuit Playground
Revisiting a classic project with Circuit Playground
by Phillip Burgess
One of my first projects with Adafruit was Adalight, an ambient lighting effect for media PCs, similar to the Ambilight feature of mid-2000s Philips TVs. Basically, matching what's on the screen to a set of background lights to make the display pop! This pint-sized version of our earlier Adalight project brings easy ambient media lighting to laptops and small all-in-one PCs.
Circuit Playground: K is for Kits
Build some kits with Ladyada & the Circuit Playground gang!
by C. Cunningham
Adabot & the Circuit Playground components love to jam, but they could use some new instruments. Luckily, Ladyada has few kits up her sleeve!
Circuit Playground Quick Draw
Challenge a friend to see who can 'draw' the quickest.
by Carter Nelson
A simple two player reaction timer game. When the lights come on, each player presses their button. The winner is whoever was the Quick Draw.
Circuit Playground Hourglass
Like sands through the hourglass, so are the 1s and 0s of your Circuit Playground.
by Carter Nelson
Make a fun and simple hourglass style countdown timer using your Circuit Playground.
Circuit Playground Slouch Detector
Sit up straight, or Circuit Playground will let you know!
by Carter Nelson
Learn how to make a simple slouch detector with your Circuit Playground. You can then use it to monitor your posture while sitting and warn you when you slouch.
Circuit Playground D6 Dice
Roll them bones.
by Carter Nelson
Turn your Circuit Playground into a six sided dice, otherwise known as a D6. Shake it up and let it roll.
Circuit Playground Fruit Drums
Make some block rockin' beats with Circuit Playground.
by Carter Nelson
Explore the capacitive touch capabilities of Circuit Playground and make some fun musical instruments. Use the included speaker for a tone piano. Emulate a keyboard like Makey Makey. Create a MIDI drum machine and control it with fruit.
Light Paintbrush with Circuit Playground
Create beautiful, expressive light paintings using the Circuit Playground for long exposure photography.
by John Park
The NeoPixels can change color based on accelerometer tilt, making it a terrific angle-based brush. The addition of a battery pack for power and a potentiometer for adjusting brightness make this a perfect light paintbrush!
NeoAnim: Using Bitmaps to Animate NeoPixels on Circuit Playground
Use this Python script to enable artist-friendly NeoPixel animation on Circuit Playground
by John Park
Animating NeoPixels can be challenging when using purely coding methods. This technique allows you to create traditional animation-style exposure sheets to control the color, position, and timing of your NeoPixel animation on the Circuit Playground.
How Cold Is It?
Let Circuit Playground help you find out.
by Carter Nelson
Turn the Circuit Playground into a cold temperature indicator using the on board temperature sensor.
Sword & Wand Prop Effects with Circuit Playground
Add motion triggered sound and light effects to any prop with Circuit Playground
by John Park
Here's a guide to quickly and easily adding exciting, colorful lighting effects to your props. Using the accelerometer, speaker, and NeoPixel LEDs built into the Circuit Playground, you can have sounds and lights for idle animations, along with two different effects triggered by waving and striking your foam sword, cosplay blaster, magic wand, and more.
How Tall Is It?
Let Circuit Playground help you find out.
by Carter Nelson
Turn the Circuit Playground into an inclinometer using the on board accelerometer. Take it outside and use it to determine the height of trees, buildings, kaiju, etc.
Circuit Playground Jack-o'-Lantern
A no-soldering Halloween project
by Phillip Burgess
In this simple no-soldering-required project we’ll make the Adafruit Circuit Playground board act like a flickering candle. Pop this inside a jack-o’-lantern (or any other item that might normally use flame) to create a spooky atmosphere. RAR!
Circuit Playground Sound-Controlled Robot
Make your Circuit Playground mobile and change direction via sound
by Mike Barela
Circuit Playground makes the basis for a wonderful robot with two servo motors to move it. But how to tell it where to go? Maybe whistle or better use tones from another microcontroller.
Dear Diary Alarm
Keep your secrets safe!
by Carter Nelson
Use the Circuit Playground to create a light activated alarm to protect your diary from snooping hands.
Circuit Playground PZ-1: Pizza Box DJ Controller
Make a DJ controller from conductive paint, cardboard, and a Circuit Playground!
by John Park
Make your own PZ-1 MIDI pizza box DJ controller using a Circuit Playground, which speaks MIDI directly to your software, such as Traktor, Mixxx, and others. With a stencil and conductive paint you'll create a delicious controller layout.
Circuit Playground Yoyo
It Spins and Lights Up
by Ruiz Brothers
3D Print a yoyo body for the Circuit Playground.
Circuit Playground Password Vault
Turn your Circuit Playground into a USB password vault
by John Park
Long, random passwords are the most secure, but can be difficult to remember and tricky to type. Build this Circuit Playground Password Vault to remember and enter them for you! Store up to ten passwords and enter them into a computer over USB at the push of a button. You'll even create a unique unlock sequence so your passwords stay secure, and build a rugged 3D printed case to take it on the go.
Circuit Playground Kaleidoscope
Make intricate colored patterns using Circuit Playground and some household items
by Mike Barela
The NeoPixels on Circuit Playground make pretty colored patterns but they can get rather predictable. Remember using a kaleidoscope as a child? Using your Circuit Playground, a battery pack, and some household items, you can construct a turnable Kaleidoscope of your own.
Circuit Playground: J is for Joule
Learn about the Joule - a unit for measuring work
by C. Cunningham
Adabot gets working with James Prescott Joule and learns all about the Joule, a unit which measures work itself!
Circuit Playground Class Scheduler
Keep track of tricky schedules, Monday through Friday!
by John Park
The Circuit Playground's NeoPixels are used as indicators for day of the week and class periods, color coded per subject. You can enter a complex schedule that varies daily in the sketch, and then click the buttons on your Circuit Playground to find out which class is next.
Circuit Playground Combadge
It's a combadge that actually chirps!
by Ruiz Brothers
Build your own Combadge using Circuit Playground!
Circuit Playground Sound and Music
Easily incorporate sound into your projects!
by Mike Barela
Circuit Playground provides an excellent way to explore the world of digital music. Step into the world of sound with your Circuit Playground board.
Circuit Playground & Bluetooth Low Energy
Interact with Circuit Playground from your phone or tablet without wires!
by Tony DiCola
Learn how to connect a Bluefruit LE module to Circuit Playground and interact with the device using Adafruit's Bluefruit iOS and Android applications.