In this Pro Trinket powered project, build and 3D print yourself a friend, an Adafriend! This little colorful guy with an eye responds to taps and vibrations, and shows emotion on its little LED matrix front with a sad, neutral, happy, or angry face. It gazes around at its environment and blinks, plays spontaneous tones and patterns that correspond to it's emotional state, and even sings some recognizable tunes and themes when it's in the mood! If left alone for too long it gets lonely, but pester your pet too much and it may get angry at you! Build yourself an Adafriend and keep it happy to sing along with the coolest little cube around!

Recommended Precursor Guides

Before embarking on this guide, I recommend you take a look at the 1.2" LED Matrix Backpack guide to familiarize yourself with the core hardware and software of the guide. The Ruiz Brothers' guides also involve thin wires in tight spaces, here is their profile. Also check out Phillip Burgess's LED Matrix animating guides for more LED eye costumes and creations, the base code and inspiration for this project!

Complexity Warning

Tools Needed

For this project you will need a soldering iron, solder, diagonal cutters, wire strippers, tweezers, a phillips screwdriver, a hot glue gun, and a lighter, heat gun, or blowtorch to shrink heat shrink tubing.

With these tools gathered, we can move on to the cute little cube friend part of the guide!