/ Arduino / Adafruit Metro

Adafruit METRO

31 GUIDES | 470 PAGES | 1 FEATURED | 2 POPULAR

The Adafruit METRO is an Arduino Uno equivalent board designed with a few extra features to improve upon the original Uno. We sure love the ATmega328, and we use it a lot for our own projects. The processor has plenty of GPIO, analog inputs, hardware UART, SPI and I2C, timers, and PWM galore.

There is no better way to visualize cloud data than with an actual cloud.
Richard Albritton

CircuitPython Connected Weather Cloud Lamp

3
Intermediate
Easily display status messages with Stream Deck and an RGB Matrix Panel
M. LeBlanc-Williams

Stream Deck controlled RGB Message Panel using...

14
Beginner
Create, display and share autostereograms with this CircuitPython project
Dan Cogliano

Tiny Autostereogram Construction Kit

2
Beginner
Have some a-MAZE-ing fun with this non-soldering project, creating random mazes and their solutions at various difficulty levels.
Dan Cogliano

ePaper Maze Maker

3
Beginner
Build this eInk / ePaper weather station
Dan Cogliano

eInk / ePaper Weather Station

34
Intermediate
Give your project an AirLift with a Metro board with WiFi
Brent Rubell

Adafruit Metro M4 Express AirLift (WiFi)

5
Beginner
Display a monthly calendar using this ePaper display
Dan Cogliano

ePaper Calendar Featuring Metro M4 Express Airlift...

6
Beginner
Program or Re-Program a SAMD Bootloader
Brent Rubell

How to Program SAMD Bootloaders

8
Intermediate
A MakeCode editor for breadboard friendly boards
Peli de Halleux

MakeCode Maker

3
Beginner
Make your own neon-style signs with LED "neon" strips. Animate the sign with a Metro M0
John Park

Neon LED Signs

12
Intermediate
Inside the ATMega328: a guided tour of a classic Microcontroller
Dave Astels

Digital Circuits 7: MCUs... how do they work?

7
Intermediate
Un-Constricted CircuitPython Debugging in a Windows Environment!
Michael Schroeder

Debugging CircuitPython On SAMD w/Atmel Studio 7

10
Intermediate
In this guide, we design and build a ROM emulator
Dave Astels

Digital Circuits 6: An EPROM Emulator

6
Intermediate
Choo! Choo! ARM Cortex M4 @ 120 MHz coming thru!
lady ada

Adafruit Metro M4 Express featuring ATSAMD51

25
Beginner
Interface of Infinite Possibilities: Matrix keypad and NeoSegment display
John Park

Mystery Box: NeoMatrix Mk I

15
Intermediate
computers are overrated anyhow
Dean Miller

Programming an M0 using an Arduino

15
Intermediate
Harness the power of the Adafruit Metro by making 18 Circuits!
Brent Rubell

Experimenter's Guide for Metro

40
Beginner
Slim all-in-one Metro that's breadboard friendly
lady ada

Adafruit Metro Mini

9
Beginner
What time is it? Metro Mini time! Build this stylish, minimalist clock.
John Park

Metro Minimalist Clock

26
Intermediate
Revisiting the Olde Days of television and radio
Phillip Burgess

Circuit Playground Express (& other ATSAMD21 Boards)...

11
Intermediate
CircuitPython, Arduino IDE or even MakeCode with this Metro M0
lady ada

Adafruit Metro M0 Express - Designed for CircuitPython

26
Beginner
Using GDB to better understand program state and history.
Scott Shawcroft

Debugging the SAMD21 with GDB

13
Intermediate
Venture deep into the Blink sketch...
lady ada

Ladyada's Learn Arduino - Lesson #2

56
Beginner
Hello, World! I am an Arduino and I am here to BLINK!
lady ada

Ladyada's Learn Arduino - Lesson #1

49
Beginner
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