Piano Sensor Project

• Electronic design
• Firmware written in Rust for stm32f103
• Python app for data visualization

Electronic Design

This repo contains the following KiCad projects

• encoder-breakout is the breakout pcb for the AEDR-8300 optical encoder IC
• main-board is a daisychainable board that connects to five encoder-breakouts
• uart-adapter connects to the main-board and computer (USB) and also delivers power.

Firmware

There are two firmware projects

• firmware was the first try. It works and decodes the encoder signals but does not have all functionality such as daisychaining.
• firmware-rftm is firmware based on the cortex-m-rtfm framework. This has all functionality and is compatible with the python app.

App

The python app lives in a Pipenv virtual environment. First time you need to run the following command to install:

pipenv install

Then to run:

pipenv shell
python app.py