Make your next project with Trellis, Adafruit open-source button platform. Customize and 3D Print our enclosure to fit your project. Our 4-piece design fits the Trellis Driver PCB, Elastometer button keypad, and the Arduino. Great for mini-handheld music, game or keyboard controllers.This guide was first published on Dec 28, 2013. It was last updated on Nov 18, 2018. This page (Overview) was last updated on Nov 23, 2015.