Hello NeoPixels!

Are you looking for an awesome blinky project? Do you like the idea of wearing RGB light spectrum on your wrists? Well, we have a project for you! This project is great for anyone that's getting started with electronics and 3D printing. This guide walks through the whole process of building this project so you can follow along step by step. The wiring, circuit diagram and code used in this project can easily be adapted for making other projects.

Trinket Powered

This slim bracelet is powered by a Trinket, mini skinny NeoPixel LED Strips and a rechargeable battery! The USB port is accessible from the side of the bracelet and uses a small but super strong magnets to keep it on while wearing!

Tools & Supplies

You'll need the following tools and supplise to build this project.


Magnets & Paper Clip

We used these strong diametrically magnetized cylindical magnets:

We'll also need a paperclip to make a pin for the hinge.

Adafruit Trinket - Mini Microcontroller - 5V Logic

As of October 9th, 2015 the 5V Trinket comes with a micro-USB connector instead of a mini-USB connector!Trinket may be small, but do not be fooled by its size!...

Adafruit Mini Skinny NeoPixel Digital RGB LED Strip - 60 LED/m

So thin. So mini. So teeeeeeny-tiny. It's the 'skinny' version of our classic NeoPixel strips!These...

Lithium Ion Polymer Battery - 3.7v 150mAh

Lithium ion polymer (also known as 'lipo' or 'lipoly') batteries are thin, light and powerful. The output ranges from 4.2V when completely charged to 3.7V. This battery...

Breadboard-friendly SPDT Slide Switch

These nice switches are perfect for use with breadboard and perfboard projects. They have 0.1" spacing and snap in nicely into a solderless breadboard. They're easy to switch...

Silicone Cover Stranded-Core Wire - 30AWG in Various Colors

Silicone-sheathing wire is super-flexible and soft, and its also strong! Able to handle up to 200°C and up to 600V, it will do when PVC covered wire wimps out. We like this wire...

JST-PH Battery Extension Cable - 500mm

By popular demand, we now have a handy extension cord for all of our JST-terminated battery packs (such as our LiIon/LiPoly and 3xAAA holders). One end has a JST-PH socket, and the...

PLA Filament for 3D Printers - 1.75mm Diameter

Having a 3D printer without filament is sort of like having a regular printer without paper or ink.  And while a lot of printers come with some filament there's a good chance...
This guide was first published on Jan 25, 2017. It was last updated on Nov 15, 2018. This page (Overview) was last updated on Jan 25, 2017.