# 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. [Check out the design here](https://upverter.com/breakpointer/b333d519b3232a2d/IMPLAY---4-Channel/) [![IMPLAY - 4 Channel by breakpointer b333d519b3232a2d - Upverter](https://upverter.com/breakpointer/b333d519b3232a2d/IMPLAY---4-Channel/embed_img/13908055160000/)](https://upverter.com/breakpointer/b333d519b3232a2d/IMPLAY---4-Channel/#/) Here's the assembled project ![impplay assembled parts1](./impplay_assembled_parts1.jpg) First test assembled with the battery. It works great! ![impplay assembled w battery](./impplay_assembled_w_battery.jpg) Close-up powered from the USB on the Electric Imp card caddy ![impplay usb assembled](./impplay_usb_assembled.jpg) # 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. ![impplay partial enclosure](./impplay_partial_enclosure.jpg) Printing on the Makerbot! ![impplay enclosure makerbot](./impplay_enclosure_makerbot.jpg) I thought it looked pretty nice. Very 80s. I used Sugru to snug in the PCB and keep it from rattling around. ![impplay completed enclosure](./impplay_completed_enclosure.jpg) ![impplay completed open](./impplay_completed_open.jpg) # 3D Models

Implay Project Enclosure Top by breakpointer on Sketchfab

Implay Project Enclosure Bottom by breakpointer on Sketchfab

IMPlay