Team

Leon Kornfeld

Damanic Luck

Adam Angle

Overview

We wanted to create a PCB that would respond to capacitive touch via the circular touchpads on the bottom on the PCB. A LED will light up when the corresponding touchpad is touched, which is detected through the ESP-32 placed in the middle of the PCB. In addition to the LED lighting up, it would also emit a sound from the attached speakers.

Features

1. Ground plane only on non-touchpad areas in order to reduce parasitic capacitance

2. USB-C connection

3. ESP32-S2-SOLO and Arduino IDE compatibility

4. Approximately 10 inches in length

Schematic

Project BOM

Layout

Top View

Conclusion

This was a very rewarding experience that taught all of the beginning processes of creating our own PCBs, from the designing process all the way to the actual manufacturing process. We also learned how time-consuming creating a fully functional PCB is and gained a new appreciation for the ones that are in our electronics. Finally, we also learned how detail-oriented we have to be since some parts are really similar to other parts with only some minor differences that turn out to be not so minor in the actual PCB.