0
PROGRAMMING
MICROPYTHON / CIRCUITPYTHON
68 GUIDES | 486 PAGES | 6 FEATURED | 2 POPULAR
NEW
Make It Change: Potentiometers
Learn to use potentiometers (variable resistors) in your projects.
by Mike Barela
How do you dial in the values you want your electronics to use? 9 out of 10 projects say they use a potentiometer! Variable resistors come in all sorts of types for different needs. This tutorial will get you started quickly in using potentiometers for your projects.
NEW
CircuitPython on the nRF52
Blinka & her new pal the nRF52840
by lady ada
This guide will take you through the process of building/compiling CircuitPython for the nRF52840 bluetooth LE chipset
NEW
Compost Friend!
Help your compost THRIVE with this waterproof, Circuit Playground, powered smart compost machine
by Isaac Wellish
Know when to turn and add wet or dry material to your compost with this sun powered, waterproof Circuit Playground compost optimization machine. With some simple temperature and moisture sensors, the NeoPixels on the Circuit Playground Express will tell you what your compost needs to thrive.
UPDATED
Introducing Adafruit Crickit #MakeRobotFriend
Make your robot pal who's fun to be with using Crickit!
by lady ada
Sometimes we wonder if robotics engineers ever watch movies. If they did, they'd know that making robots into slaves always ends up in a robot rebellion. Why even go down that path? Here at Adafruit we believe in making robots our friends!
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!!
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.
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.
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.
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.
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.
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.
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.
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.
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.
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.
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.
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.
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!
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.
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.
CircuitPython-Powered 3-minute Nightlight
Make a nightlight with just a Gemma M0 and CircuitPython! Or use a Circuit Playground Express for a super-featured version.
by Dan Halbert
A Gemma M0 running CircuitPython has everything you need to make a simple nightlight or a fancier one with brightness and color control. No assembly required! Put together this simple configurable night-light in only a couple minutes!
Contribute to CircuitPython with Git and GitHub
From fork to merge, this guide covers all the steps necessary for a successful Git and GitHub workflow.
by Kattni Rembor
You already have Git setup, and you have a GitHub account. You want to contribute to an open source project like CircuitPython, but you're not sure where to start. This guide walks through the steps from forking your first repo to your GitHub account, to cloning it locally, creating a working branch, making a commit, pushing your code to your fork, creating a PR, and both receiving and giving a review. You'll learn good practices and tips and tricks, and before you know it, you'll be a pro contributor. Pick a project, find an issue, and let's get started!
Blues Playground
Do you feel like singin' the blues but don't have time for music lessons? No problem! You and your buddies can jam the blues on a Circuit Playground Express without a rehearsal!
by Jan Goolsbey
Using a Circuit Playground Express with CircuitPython's sound file and accelerometer support, we'll build a multi-voiced percussion instrument and blues chord progression player. Tapping the instrument will play the sound of a variety of selectable percussion instruments or step you through a blues chord progression one beat at a time. The project also includes a hack to connect the Blues Playground to a guitar amplifier for jamming on the big stage!
Touch Tone for Circuit Playground Express
CNC mill a custom PCB for Circuit Playground Express
by Ruiz Brothers
Learn how to build a mini capacitive touch synth using Circuit Playground Express and Circuit Python.
FEATURED
CircuitPython Made Easy on Circuit Playground Express
Get started with just a few lines of code!
by Kattni Rembor
New to CircuitPython? Looking for an easy way to get started? We've written a library for the Circuit Playground Express that makes it super simple to begin using all the sensors, switches and lights. This guide will show you all the features of this library and how to use each one. Let's get coding!
Trash Panda
Adorable Hugging Panda Friend
by Dano Wall
An animal panda you can build out of a scrap Amazon box. Demonstrates how to use CRICKIT paired with Circuit Playground Express to control multiple motors at once.
Animatronic Hand
Build a cardboard animatronic hand with independent finger control using CRICKIT robotics controller board!
by John Park
Use the CRICKIT board with your Circuit Playground Express to control a cardboard animatroinc hand. Four servo motors pull the fingers into position using cable drive systems made from cord and straw guides. Program it all with CircuitPython to actuate as you press the capacitive touch controllers. You'll also learn to use the CRICKIT as an audio-animatronic controller with pre-programmed sounds and motions, such as counting in binary!
Living Starry Night Painting
Build your own animated version of Starry Night
by Dano Wall
Add movement and light to famous works of art using Circuit Playground Express, CRICKIT, and CircuitPython. This beginner level project uses simple household materials and teaches basic programming skills.
Digital Circuits 6: An EPROM Emulator
In this guide, we design and build a ROM emulator
by Dave Astels
Building a retro micro project can be fun, but using old ultraviolet EPROMS is difficult. But, you can build a ROM emulator. In this guide, we'll walk through the design and implementation using a Metro M4, a static RAM chip, and a handful of digital logic chips.
Gemma LightTouch
It takes a light touch to light up your Gemma!
by Kattni Rembor
You just got this amazing little board. Now, how about a quick little project you can do with only a few minutes of your time? Sounds great! This guide provides two different ways to interact with your Gemma using capacitive touch and the built-in LED. Quick, simple, and super fun!