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The GEMMA CircuitPython Guides Continue!

Adafruit’s GEMMA M0 wearable microcontroller comes with CircuitPython support fresh from the factory. Plug it into USB and use any text editor to open and edit the “.py” file…it’s just that simple, no IDE to install!

We’re updating most of our “classic” GEMMA guides on the Adafruit Learning System to provide example CircuitPython code for the new board along with the original Arduino sketches, and bringing the latter up-to-date where needed. GEMMA M0 can run either one.

With something like 175 GEMMA-related guides in the Adafruit Learning System, watch for updates in small batches. Here are the latest:

Trinket “Question Block” Sound Jewelry

“Ba-DING!” The classic 8-bit chime from our favorite retro video game finally makes a triumphant come back as a Mario question block necklace. It’s so tiny and adorable you’re probably wondering, “How much?” This is custom…you can only make it, not buy it!

Adafruit Trinket-Modded Stuffed Animal

This project provides ideas for creating stuffed, papercraft or other toy animals with characteristics you want. You can chose your animal, make it move and have it make sounds. Assembly is straightforward, the most complex component is using your imagination.

The basic circuit shows you how to use a servo motor, a piezo speaker, and a photocell to provide interactivity with your animal.

3D Printed Daft Punk Helmet

A perfect combination for making great things! This giant helmet is 3d printed in transparent/translucent PLA for a light up wearable, giving you freedom to headbang to your favorite beats.

As a hollowed out shell, you can easily to fit a strip of LEDs inside the helmet for making an epic LED costume. You can even customize the helmet in CAD software to fit your head!

NeoPixel Cyber Falls Wig

“Cyber falls” are a hair fashion accessory you might see in some rave and Burning Man circles. Also great for Halloween! This project steps it up with LED animation using NeoPixel strips.

Laser Dog Goggles

Dress your dog up for Halloween! This project mods a pair of Doggles brand dog goggles with a swiveling laser diode for targeting all those ghouls and goblins lurking near ground level.

After building these, your dog can be Terminator, Robo Cop, or, in my case, Tank Girl’s kangaroo boyfriend.


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.

Join 13,000+ makers on Adafruit’s Discord channels and be part of the community! http://adafru.it/discord

CircuitPython 2019!

Have an amazing project to share? The Electronics Show and Tell with Google Hangouts On-Air is every Wednesday at 7:30pm ET! To join, head over to YouTube and check out the show’s live chat – we’ll post the link there.

Join us every Wednesday night at 8pm ET for Ask an Engineer!

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