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ARDUINO COMPATIBLES

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ADAFRUIT FLORA ADAFRUIT GEMMA ADAFRUIT METRO LEARN ARDUINO TRINKET

Adafruit Metro M0 Express - Designed for CircuitPython

CircuitPython, Arduino IDE or even MakeCode with this Metro M0

Metro is our series of microcontroller boards for use with the Arduino IDE. This new Metro board looks a whole lot like our original Metro 328, but with a huge upgrade. Instead of the ATmega328, this Metro features a ATSAMD21G18 chip, an ARM Cortex M0+. It's our first Metro that is designed for use with CircuitPython! CircuitPython is our beginner-oriented flavor of MicroPython - and as the name hints at, its a small but full-featured version of the popular Python programming language specifically for use with circuitry and electronics.

Chilled Drinkibot

Make a nice, cold beverage using thermoelectric cooling!

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.

Screaming Cauldron

This terrifying illuminated bowl will give trick-or-treaters quite a scare when they reach for candy and trip the distance sensor!

An IR distance sensor, Trinket M0, NeoPixel strip, and AudioFX sound board plugged into powered speakers combine to make a booby trapped candy bowl. The CircuitPython program measures the distance of objects in front of the IR sensor, and changes the LED colors to match. Then, when you get too close, it screams bloody murder!!

Clockwork Goggles

Animate your goggles with NeoPixel rings controlled by a Gemma M0 running CircuitPython

These LED rings add a nice touch to the tick-toc clockwork of your costume goggles. Perfect for Halloween and cosplay.

CPU Temperature Logging with CircuitPython

Explore some new features in CircuitPython 2.0.0 with nothing but your board and one wire!

The temperature of your board's CPU, exposed through the magic of CircuitPython. Plus a walkthrough of putting your board into write mode, and how to get out of that if you accidentally lock yourself out of the USB interface.

Micro:bit with Arduino

Program your micro:bit with Arduino!

Did you know that the Arduino IDE can be used to program the micro:bit? Now you have yet another way to use this cool board! Learn how to set up Arduino to program your micro:bit, blink some LEDs, read the internal temperature sensor, send and receive data over Bluetooth - even log data to Adafruit.IO!

Fiber Optic Whip

Dance in a Cloud of Fiber Optic Lights

by Erin St Blaine

Create a fiber optic whip that will inspire you to dance within a million points of light. The seven bright Neopixels inside allow for animation and infinite color combinations. The 3d printed handle is rugged enough for festivals and performances.

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!

Programming an M0 using an Arduino

computers are overrated anyhow

Programming ARM core microcontrollers can be bulky and time consuming. This guide hows how to do it simply using an ATSAMD21 based arduino-compatible board.

Adafruit Trinket M0

CircuitPython or Arduino IDE on this tiny little microcontroller board

The Adafruit Trinket M0 may be small, but do not be fooled by its size! It's a tiny microcontroller board, built around the Atmel ATSAMD21, a little chip with a lot of power. We wanted to design a microcontroller board that was small enough to fit into any project, and low cost enough to use without hesitation. Perfect for when you don't want to give up your expensive dev-board and you aren't willing to take apart the project you worked so hard to design. It's our lowest-cost CircuitPython programmable board!

Experimenter's Guide for Metro

Harness the power of the Adafruit Metro by making 18 Circuits!

by Brent Rubell

We are going to make 18 circuits to explore the basics of using wiring and programming with the Adafruit Metro and Metro Express in Arduino. This guide covers: LEDs, transistors, motors, integrated circuits, push-buttons, variable resistors, photo resistors, temperature sensors & relays.

Dotstar LED and Glass Pebble Floor

Add dramatic color changing lighting to your walkway

by Erin St Blaine

Put a stunning light installation in your floor or walkway. Control it with a click of Circuit Playground's onboard buttons. Glass pebbles create a classy diffused look that will accent any home beautifully.

GEMMA M0 Case

3D Print A Case For Your GEMMA M0

by Ruiz Brothers

Need an enclosure for your shiny new GEMMA M0? 3D print one!

Adafruit Metro Mini

Slim all-in-one Metro that's breadboard friendly

We sure love the ATmega328 here at Adafruit, and we use them a lot for our own projects. The processor has plenty of GPIO, Analog inputs, hardware UART SPI and I2C, timers and PWM galore - just enough for most simple projects. METRO Mini is the culmination of years of playing with AVRs: we wanted to make a tiny, breadboard-friendly development board that is easy to use and is hacker friendly. Metro Mini can be programmed with the Arduino IDE (select 'UNO' in the boards dropdown)

Gemma M0 Sheikah Pendant

Wearable Glowing Jewelry

by Ruiz Brothers

3D print a Sheikah themed pendant from the Legend of Zelda using a NeoPixel Jewel and Gemma M0.

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.

Adafruit Gemma M0

The Gemma M0 will super-charge your wearables! Small, light, and it's easy to use, so you can do more.

The Adafruit Gemma M0 may look small and cute: round, about the size of a quarter, with friendly alligator-clip sew pads. But do not be fooled! The Gemma M0 is incredibly powerful! We've taken the same form factor we used for the original ATtiny85-based Gemma and gave it a power up. The Gemma M0 has swapped out the lightweight ATtiny85 for a ATSAMD21E18 powerhouse.

Metro Minimalist Clock

What time is it? Metro Mini time! Build this stylish, minimalist clock.

It's a clock. Made of love. And a Metro mini, a realtime clock module, and a 7-segment display backpack.

Pro Trinket Tachometer

Do you know how fast you were going?

Cutting tools and drill bits are most effective when run at the correct speed for the material. This simple project adds a precise digital speed readout to your shop machinery.

Adafruit Mini TFT - 0.96" 160x80

Mini TFT is small, but don't let it's size fool you!

It's the size of your thumbnail, with glorious 160x80 pixel color... it's the Adafruit Mini TFT Breakout! This very very small display is only 0.96" diagonal, packed with RGB pixels, for making very small high-density displays.

Circuit Playground Express (& other ATSAMD21 Boards) DAC Hacks

Revisiting the Olde Days of television and radio

by Phillip Burgess

The Circuit Playground Express runs on the ATSAMD21 which has a built-in DAC (digital-to-analog converter). It can be persuaded to generate black-and-white TV signals or transmit weak AM radio — without soldering any extra components!

Neopixel Jewel 10 Minute Necklace

Create a stunning piece of jewelry with this easy project.

by Erin St Blaine

Use a Gemma and a Neopixel Jewel to create a stunning necklace. The parts in this project cost less than $25, and it's simple and easy to do: great for beginners, kids, or as a simple insert to make any jewelry craft light up. Build it in 10 minutes and it will glow all night long.

Introducing Adafruit Feather

Boards of a Feather flock together!

Welcome to the Wonderful World of Feathers! This guide will tell you all about the dozens of options you have to build your next Feather project.

n3rfgun

Hacking the Nerf gun with NeoPixels

by Scott McCulley

We modified a stock Nerf gun to increase the firing speed, add multiple velocities for the dart, and blinky lights for more excitement in the dark!

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!

Mystery Box: Shutterglass Chamber

Astound people with a mystery box that will reveal secrets hidden behind its transforming panels!

Build this secret shadow box using LCD shutter glass panels, a Trinket microcontroller, and a healthy dose of mystery! The Trinket adjusts voltage to fade the panels from opaque to transparent -- all triggered by a hidden magnet sensor.

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 Feather M0 Express - Designed for CircuitPython

Get running faster than ever with the first Adafruit Express board

Get started quickly using Arduino or CircuitPython on the Feather M0 Express.

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.

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

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.

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