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Adafruit IO Basics: Servo
Move physical objects with the power of Adafruit IO!
by Todd Treece
This guide is part of a series of guides that cover the basics of using Adafruit IO. It will show you how to wirelessly control a servo from Adafruit IO.
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Adafruit IO Basics: Temperature & Humidity
Monitor temperature & humidity from anywhere!
by Todd Treece
This guide is part of a series of guides that cover the basics of using Adafruit IO. It will show you how to send temperature and humidity values wirelessly to Adafruit IO from a DHT22 sensor.
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Adafruit IO Basics: Color
Add a splash of color to your Adafruit IO project.
by Todd Treece
This guide is part of a series of guides that cover the basics of using Adafruit IO. It will show you how to send color data from Adafruit IO to a RGB LED.
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Adafruit IO Basics: Analog Output
Control LED brightness from Adafruit IO!
by Todd Treece
This guide is part of a series of guides that cover the basics of using Adafruit IO. It will show you how to dim a LED from Adafruit IO using any modern web browser.
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Adafruit IO Basics: Analog Input
Send real time analog sensor data to Adafruit IO!
by Todd Treece
This guide is part of a series of guides that cover the basics of using Adafruit IO. It will show you how to send analog values to Adafruit IO from a photocell.
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Bluetooth LE MIDI Controller
Wireless MIDI
by Ruiz Brothers
A unique MIDI controller using a NeoPixel, Bluefruit 32u4 and a capacitive touch sensor.
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Using Bluefruit BLE to Give Disabled Users Switch Control Access to IOS Devices
Build an inexpensive Bluetooth device to give a disable user access to their iPad or iPhone
by Chris Young
A physical disability can make it impossible to operate a touchscreen device such as an iPhone or iPad. Commercially available switch control devices can cost several hundred dollars but with the power of Adafruit Bluefruit BLE devices you can build an interface for a fraction of that cost. We show you how in this tutorial.
Kombucha Thermostat with CircuitPython and Feather
Kombucha, It's ALIVE and it needs a smart heater
by Scott Shawcroft
Brewing Kombucha in cool climates is challenging. In this guide we use Adafruit's Feather M0 and CircuitPython to create a thermostat for brewing the perfect 'Buch all year round.
Debug Header for the Feather [M0]
Make a Simple JTAG Debugging FeatherWing for the M0
by Michael Sklar
Single Step JTAG Debugging is here and stable for the Arduiino. Adafruit's Feather M0 line not only provide 5x the clock speed and 8x the storage of recent Arduino's, but they now have the ability to talk to a debugger. This tutorial will show you how to make a simple FeatherWing PCB and connect to it from MacOS / OS/X.
Mystery Box: Crypto Countdown Case
This Cold War-era mystery box's disarm code must be toggled in before the timer reaches zero!
by John Park
Here's a Soviet themed launch-code box, complete with missile switch covered toggles, a Feather with red 14-segment display for the countdown timer, and stress-inducing piezo buzzer. Use it for an escape room, prop, or wedding proposal. Your players, or potential spouse-to-be, will need to enter the correct five-switch sequence to defuse the device before all is lost. (Note: this project is a harmless prop, not an actual bomb.)
Adabox 001 Temperature Alarm
A Temperature Monitor and Alarm with parts from Adabox 001
by Kirby Griese
Build a Temperature Monitor and Alarm using the parts included in Adabox 001.
Custom Bluetooth Cherry MX Gamepad
Make a custom wireless gamepad with Cherry MX Switches!
by Ruiz Brothers
Use the Adafruit Feather 32u4 Bluefruit LE to make a custom gamepad with Cherry MX switches.
Adafruit Music Maker FeatherWing
Bumpin' tooonz for your Feather board
by lady ada
Bend all audio files to your will with the Adafruit Music Maker FeatherWing! It's a fun-size version of our Music Maker shield for Arduino! This powerful 'Wing features the VS1053, a chip that can decode a wide variety of audio formats such as MP3, AAC, Ogg Vorbis, WMA, MIDI, FLAC, WAV (PCM and ADPCM). You can do all sorts of stuff with the audio as well such as adjusting bass, treble, and volume digitally.
Wireless UNTZtrument Using BLE MIDI
Use a Feather Bluefruit LE to make a Wireless UNTZ!
by Todd Treece
In this guide, we will replace the Arduino Leonardo used in the standard UNTZtrument with either the Feather M0 Bluefruit LE, or the Feather 32u4 Bluefruit LE. This small hardware change will allow us send MIDI data wirelessly to computers and mobile devices using Bluetooth LE MIDI.
Easy Alexa (Echo) Control of your ESP8266 Huzzah
"Alexa, do something cool with my Feather!"
by lady ada
If you've already got an Amazon Alexa or Echo dot in your home or office, you can easily add your very own devices. In this quick project we'll show how to use an Adafruit ESP8266 Feather HUZZAH to control NeoPixels or a relay. You can easily adapt the code to add any number of devices to a single Feather for all sorts of interactive home automation projects with ease!
Schluff - The Sleep Monitor
Find the ideal conditions for a good nights rest
by Michael Sklar
Schluff is a yiddish word which means to take a short nap. This project is about finding the ideal environment for quality sleep by monitoring different conditions and biometric data. Ideally the data from this device would be overlayed with a wrist based fitness tracker for additional revelations. Schluff records the following: temperature, humidity, light, noise and heart rate. The collected data is sent from a Feather 32u4 (Arduino compatible) over to an iOS device or macOS laptop using BLE (Bluetooth Low Energy). The BLE catchers can save the data locally or relay it up to adafruit.io for storage and graphing.
Adafruit 2.4" TFT FeatherWing
A lovely color display for any Feather, show off your Feather plumage!
by lady ada
Spice up your Feather project with a beautiful 2.4" touchscreen display shield with built in microSD card socket. This TFT display is 2.4" diagonal with a bright 4 white-LED backlight. You get 240x320 pixels with individual 16-bit color pixel control. It has way more resolution than a black and white 128x64 display. As a bonus, this display comes with a resistive touchscreen attached to it already, so you can detect finger presses anywhere on
MAC Address Finder
Quickly find the MAC address on devices where doing so isn't so easy.
by Ron Dear
In most situations finding the MAC address of a wireless device is fairly straightforward. However there are some things like smart TVs, IOT devices, gaming consoles, etc. that either don't display that MAC or have it hidden in a mess of on screen menus. This device broadcasts a wireless network without a password. Connect any wireless device to it and once the connection is made the MAC address of the device will be displayed on the small OLED screen.
Mad Science Test Tube Rack
Create a mad science blacklight test tube rack with fluorescent pigments and ultraviolet LEDs.
by John Park
Build a creepy, glowing test tube display... if you dare. A Feather microcontroller makes the UV LEDs shine to create dazzling effects in the fluorescent pigment-and-water filled test tubes. Easy-to-assemble black iron pipe forms the base of this labware set. The perfect prop for your own haunted house or creepy laboratory.
Debugging the SAMD21 with GDB
Using GDB to better understand program state and history.
by Scott Shawcroft
Debug your SAMD21 C code via the GNU Project Debugger (GDB) on Windows, Mac or Linux. Breakpoints allow you to pause your code at points of interest. Once paused, use a backtrace to see the current program state and the micro trace buffer to see the history of the program.
Adabox 001
Explore the contents of your ADABOX 001
by lady ada
If you're here, it's because you were given the gift of electronics with an AdaBox! You are a beginner who is getting started with your AdaBox or you just want to relive what it's like being a beginner at electronics again. But most of all, you want to learn how to build and make stuff with electronics!
Adafruit Adalogger FeatherWing
Real time clock + SD card for data reading & writing
by lady ada
This FeatherWing will make it real easy to add datalogging to any of our existing Feathers. You get both an I2C real time clock (PCF8523) with 32KHz crystal and battery backup, and a microSD socket that connects to the SPI port pins (+ extra pin for CS). Tested and works great with any of our Feathers, based on ATmega32u4, ATSAMD21, Teensy, or ESP8266.
Light of Your Life Wedding Bouquet
Beautiful flowers that glow more brightly when your love is near
by Erin St Blaine
Your world gets brighter when she's nearby. Your wedding flowers should too. This bouquet and boutonniere are paired with RF radios and neopixels. The closer the two are together, the brighter the flowers glow. Show the whole world the way she makes you feel.
Radio FeatherWing
Packet FSK or LoRa radio add-on for your favvy Feather
by lady ada
Add short-hop wireless to your Feather with these Radio Featherwings. These add-ons for any Feather board will let you integrate packetized radio (with the RFM69 radio) or LoRa radio (with the RFM9x's). These radios are good options for kilometer-range radio, and paired with one of our WiFi, cellular or Bluetooth Feathers, will let you bridge from 433/900 MHz to the Internet or your mobile device.
Adafruit IO Basics: ESP8266 + Arduino
Get your project online fast with ESP8266, Arduino, & Adafruit IO!
by Todd Treece
The ESP8266 based Feather HUZZAH & the HUZZAH ESP8266 breakout are both very popular options for connecting projects to Adafruit IO. In this guide we are going to walk through the setup needed to get your ESP8266 up and running with the Arduino IDE & Adafruit IO. This same basic setup can be used as you progress through our Adafruit IO Basics series of guides.