ESP_MIDI

This repo contains hardware and software components for creating MIDI controllers using the ESP32-s3 microcontroller. The native USB port on the s3 allows for class-compliant MIDI devices which should be recognized natively by any computer. The repo consists of:

1. PCB: A PCB design created in KiCad, along with PDF’s of the board and schematic
2. Enclosure: 3d-printable faceplates and knobs
3. Software: Arduino-based software for programming your MIDI controller Each subfolder contains its own readme with additional information for each stage

FYI / FAQS

There are several things you need to know.

Allowing for class-compliant midi

To let ESP32-s3 appear as a class compliant device, you must set the ‘USB Mode’ for the board as “USB OTG(TinyUSB)”. You can find this setting in the Arduino Tools menu.

Reprogramming after setting USB OTG

Once the board is set to USB OTG mode it won’t show up in Arduino as a Serial device. In order to reprogram the device you must manually hold down the ‘boot’ button on the ESP32-s3, and then press press and release the ‘reset’ on the ESP32-s3.

Allowing for Serial debugging

In order to use serial.print debugging, you must set “USB CDC on boot” to “enabled”. You can find this setting in the Arduino Tools menu.

Components

There are three components to this project:

1. The PCB and electronics assembly
2. The enclosure and mechanical elements
3. The firmware for the ESP-32-S3

Instructions on how to complete the project are in the readme's for these three subfolders.