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CircuitPython Painter
POV DotStar Pixel Painter!
by Ruiz Brothers
Adafruit Feather M0 Express and DotStar LEDs Powered by Circuit Python.
POPULAR
USBtinyISP
AVR programmer & SPI interface
by lady ada
This is documentation for a simple open-source USB AVR programmer and SPI interface. It is low cost, easy to make, works great with avrdude, is AVRStudio-compatible and tested under Windows, Linux and MacOS X. Perfect for students and beginners, or as a backup programmer.
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Mystery Box: NeoMatrix Mk I
Interface of Infinite Possibilities: Matrix keypad and NeoSegment display
by John Park
A phone pad button matrix combines with an RGB character display to build a general purpose UI box with lights, sounds, and knobs! Use it for puzzles, data entry, encryption, machine control, games, and more!
FEATURED
Connecting a 16x32 RGB LED Matrix Panel to a Raspberry Pi
How to connect a 16x32 RGB LED display to your Raspberry Pi
by Simon Monk
This tutorial uses C code to drive the display. We will also experiment (with limited success) in driving the display using Python.
NEW
Adafruit I2S Stereo Decoder - UDA1334A
A nice and fully-featured I2S stereo DAC for you!
by lady ada
This fully-featured UDA1334A I2S Stereo DAC breakout is a perfect match for any I2S-output audio interface. It's affordable but sounds great! The NXP UDA1334A is a jack-of-all-I2S-trades: you can use 3.3V - 5V logic levels (a rarity), and can process multiple different formats by setting two pins to high or low. The DAC will process data immediately, and give you a clear, analog, stereo line level output. It's even cool with MCLK-less I2S interfaces such as the Raspberry Pi (which it's ideal for) - a built in PLL will generate the proper clock from the bitclock signal.
NEW
Adafruit WINC1500 WiFi Shield for Arduino
Add WiFi to your Arduino with a snap of this shield
by lady ada
Connect your Arduino-compatible to the Internet with this WiFi shield that features the FCC-certified ATWINC1500 module from Atmel. This 802.11bgn-capable WiFi module is the best new thing for networking your devices, with SSL support and rock solid performance - running our adafruit.io MQTT demo for a full weekend straight with no hiccups (it would have run longer but we had to go to work, so we unplugged it).
NEW
Arduboy Game Controller Hack
Build a full-scale arcade controller for your pocket-scale Arduboy!
by John Park
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.
NEW
iPhone X NinjaFlex + PLA Bumper Case
Protect device with slim flexible or rigid case!
by Ruiz Brothers
Print a simple bumper case to protect an iPhone X
NEW
Native MP3 decoding on Arduino
play MP3 files with only your microcontroller
by Dean Miller
Playing MP3 audio files on an Arduino compatible board used to be a clunky and expensive ordeal. Now it's a breeze with the Adafruit MP3 library. If you have an ARM Cortex M4 (or M3) based microcontroller board, and you want to rock out, this mini guide will be music to your ears. With the accompanying library, based off of Helix, you will be able to decode and play stereo MP3 files without the need for an external chip! That's right, no VLSI VS10xx chips required, you can do it on the fly!
NEW
Adafruit BME680
The BME680 combines Temperature, Humidity, Pressure and Gas Sensing!
by lady ada
The long awaited BME680 from Bosch gives you all the environmental sensing you want in one small package. This little sensor contains temperature, humidity, barometric pressure and VOC gas sensing capabilities. All over SPI or I2C, at a great price!
NEW
Boomy Pi Airplay Boombox
Stream Airtunes to Boomy!
by Ruiz Brothers
Use an Raspberry Pi Zero W and Adafruit's Speaker Bonnet to make an all-in-one portable AirTunes BoomBox!
NEW
Chilled Drinkibot
Make a nice, cold beverage using thermoelectric cooling!
by John Park
Peltier cooler + Trinket M0 + CircuitPython = refreshing drinks! This project uses a thermoelectric cooling assembly to turn electricity into coldness!! That chill is transferred to your beverage of choice via thermal conductivity, and then transported safely to your drinking glass with a peristaltic pump. Ahhhh.
NEW
Adafruit seesaw
An I2C to ... whatever! interface
by Dean Miller
PWM, ADC, NeoPixels...You want to use em but if you don't have hardware support it's impossible! Glue an Arduino to the side? No longer! Seesaw gives you multiple hardware interfaces over I2C for robotics, sensing, lighting and more!
POPULAR
DHT11, DHT22 and AM2302 Sensors
Basic temperature & humidity sensors
by lady ada
This guide covers the low cost DHT temperature & humidity sensors. These sensors are very basic and slow, but are great for hobbyists who want to do some basic data logging. We'll cover the lower-cost DHT11 as well as the DHT22 and AM2302
NEW
All the Internet of Things - Episode One
Transports: Power, Distance, and Bits
by lady ada
For the first part of Adafruit and Digikey’s All the Internet of Things - a six-part series, covering everything you need to know about the Internet of Things (which we will shorten to IoT) - we'll go over the most popular transports used in the IoT industry as well as their upsides and downsides.
FEATURED
All About Arduino Libraries
How to install and use Arduino Libraries
by Bill Earl
This guide takes you step-by-step through the process of installing Arduino libraries on Windows, Mac OSX and Linux platforms.
NEW
How To Solder Mask PCBs
Learn how to apply UV curable Solder Mask
by Ruiz Brothers
Add solder mask to CNC milled PCBs to make them last longer!
FEATURED
Gemma-Powered NeoPixel LED Sound Reactive Drums
Light up your drums with sound.
by Ruiz Brothers
Make your drums sound reactive using NeoPixels and Gemma
UPDATED
Adafruit PCF8523 Real Time Clock
Tick tock, got a clock?
by lady ada
This is a great battery-backed real time clock (RTC) that allows your microcontroller project to keep track of time even if it is reprogrammed, or if the power is lost. Perfect for datalogging, clock-building, time stamping, timers and alarms, etc. Equipped with PCF8523 RTC - it can run from 3.3V or 5V power & logic!
Adafruit 3.5" 480x320 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 3.5" touchscreen display shield with built in microSD card socket. This TFT display is 3.5" diagonal with a bright 6 white-LED backlight. You get a massive 480x320 pixels with individual 16-bit color pixel control. It has way more resolution than a black and white 128x64 display, and twice as much as our 2.4" TFT FeatherWing. As a bonus, this display comes with a resistive touchscreen attached to it already, so you can detect finger presses anywhere on the screen.
FEATURED
Instant Camera using Raspberry Pi and Thermal Printer
Pixelated photo DIY chic
by Phillip Burgess
“Instant photography” with Polaroid cameras was a thing up through the 1990s until ubiquitous digital photography took hold. In this project, we’ll replicate that old-timey watching-the-picture-develop experience with a Raspberry Pi computer and a tiny thermal receipt printer.