ECE 4760 Final Project: A digital Audio Synthesizer with RP2040

Made by:

• Tommy Chen
• Raphael Fortuna
• Rhia Malhotra

Summary

We chose this project as an exploration into the field of digital-signal processing. Initially, we expected this would be a software-heavy, hardware-light project. This was preferred over something more hardware-involved. It ended up being an everything-heavy project, but we learned a lot.

It features:

• Four buttons to access the different menus
• One potentiometer slider for adjusting variables
• One rotary encoder to select what variable should be changed
• Twelve piano “keys” connected to a capacitive touch sensor module to change the frequency

How to use

• To use our code, load the audioSynth.uf2 onto the Pico and follow the circuit instructions available under design and appendices on our website here: ECE 4760 Final Project: A digital Audio Synthesizer with RP2040

Here is a video of our demo