Background

A co-worker of mine when I was at IFTTT built the circuit that started this project. We worked on polishing it up together. I designed the PCB and the enclosure while he worked on the audio and software that drove the four small piezoelectric elements. Four piezo elements meant polyphonic audio. I wish we had a video of this thing in action.

PCB Design

I designed and ordered the PCB through Upverter. That design page is gone now — Upverter shut down and took the schematics with it.

Here's the assembled project

First test assembled with the battery. It works great!

Close-up powered from the USB on the Electric Imp card caddy

Enclosure

I ended a print early to make sure I got the dimensions of the board right in the design file. It has a charge controller, a LiPo battery, and then the custom PCB on top.

Printing on the Makerbot!

I thought it looked pretty nice. Very 80s. I used Sugru to snug in the PCB and keep it from rattling around.

3D Models

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