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New Learn Guide: Case for GEMMA M0

3D Printed Case for GEMMA M0
If you’re working on a project using the Adafruit GEMMA M0, you may want a case to protect it. This simple two piece enclosure can house the PCB and a 150mAh lithium ion polymer battery.

Portable GEMMA M0
The PCB is secured to two standoffs with M2.5 (6mm long) screws. We have a nice assortment of M2.5 sized nylon screws and nuts that will work well. The case allows access to the microUSB port for powering and programming. A slide switch extension allows you to power the GEMMA M0 on and off. To keep the case (relatively) slim, an opening on the cover lets the JST connector poke through the top.

Snap Fit Cover
The cover features a “snap fit” lip that locks onto the case, making a fairly durable connection. No screws needed. The cover can be modified to completely cover the GEMMA M0 – So you have the option to remove all of the holes and openings.

Wire Access
On the sides of the case are two “slits” that allow wires to pass through. If you’re wiring sensors, NeoPixels or other components, you can fit the wires into the slits and close the cover. These slits can be removed, or add more.

Featured Product

Adafruit GEMMA M0

The Adafruit Gemma M0 is a super small microcontroller board, with just enough built-in to create many simple projects. It 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 an upgrade. The Gemma M0 has swapped out the lightweight ATtiny85 for a ATSAMD21E18 powerhouse.


Stop breadboarding and soldering – start making immediately! Adafruit’s Circuit Playground is jam-packed with LEDs, sensors, buttons, alligator clip pads and more. Build projects with Circuit Playground in a few minutes with the drag-and-drop MakeCode programming site, learn computer science using the CS Discoveries class on code.org, jump into CircuitPython to learn Python and hardware together, or even use Arduino IDE. Circuit Playground Express is the newest and best Circuit Playground board, with support for MakeCode, CircuitPython, and Arduino. It has a powerful processor, 10 NeoPixels, mini speaker, InfraRed receive and transmit, two buttons, a switch, 14 alligator clip pads, and lots of sensors: capacitive touch, IR proximity, temperature, light, motion and sound. A whole wide world of electronics and coding is waiting for you, and it fits in the palm of your hand.

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