M0+ Breakout Board

A breakout board for the Cortex M0, SAMD21G18A for use with Arduino.

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This board breaks out all the pins of the Cortex M0 SAMD21G18A. It has a debug header, micro USB connector, and on-board LiPo charging support. I initially designed this board to practice with the SAMD21 as well as to use it as a base for future projects.

Read about it's development here:

This board is compatible with either Adafruit's or Sparkfun's bootloader for Arduino.

Suggestions and comments are welcome!

Full schematics and EAGLE files are provided in the Files Section.

x-eagle-board - 143.38 kB - 12/29/2017 at 17:08


x-eagle-schematic - 334.31 kB - 12/29/2017 at 17:08


Gerber Zip for OSHpark

Zip Archive - 84.03 kB - 12/28/2017 at 20:25


  • Init

    Lim Han Yang12/28/2017 at 08:37 0 comments

    This was a board that I put together in eagle as a foundation board for all my future projects. While the breadboard compatible layout is convenient, it would make the board quite long in this case. Female to male jumper wires is a good alternative, and there is less incentive to let it sit on the breadboard taking up valuable space.

    I finally figured out how to tent vias, and the board looks absolutely gorgeous compared to the first few iterations.

    I hope this design can be of use to others.

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