Files:

• ATSAMD21 Datasheet
• Webpage for the ATSAMD21E18 (main chip used)
• EagleCAD files on GitHub
• Fritzing object in Adafruit Fritzing library
• PDF for Gemma M0 Board Diagram on GitHub

Obsolete files

The files below reflect what might be shipped on the Gemma M0, but they are very old. Update to the latest version of CircuitPython as described in this guide.

Schematic & Fabrication Print