The guide includes sample designs using a heart shape, as well as a mermaid scale shape, and instructions on how to create your own design in the shape of your choice. It also includes a 3d printable enclosure design for your Gemma M0 and battery.

These are so easy to add to any costume or design. This guide shows you how to create your design in TinkerCad, a free online 3D design program. You can print your armor at home or use an online printing service. Hot-glue a strand of NeoPixels inside and control your project with a Gemma M0 or microcontroller of your choice.

Design and create glowing scales in your favorite shape and add NeoPixel strand lights inside for a stunning display of animated lights.

Check out the latest tutorial from Erin St. Blaine: design and create 3d printed mesh “armor” and make it glow! From the guide:



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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, TinyGO, or even use the Arduino IDE. Circuit Playground Express is the newest and best Circuit Playground board, with support for CircuitPython, MakeCode, 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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CircuitPython – The easiest way to program microcontrollers – CircuitPython.org