USB MIDI workshop

List of used hardware

• ESP32-S3 Devkit-C development board
• 2 USB cables
• Keypad (4x4 membrane matrix)
• Potentiometer
• Photoresistor
• Accelerometer + gyroscope (MPU-6050)
• Time of Flight distance sensor (VL53L0X)
• Wires

Software requirements

• Arduino IDE

Arduino board library

Add https://espressif.github.io/arduino-esp32/package_esp32_dev_index.json URL to File -> Preferences -> Additional boards manager URLs.

Find and install esp32 package in Board manager (version 3.0.0-rc3).

For more detailed installation info click here.

Arduino libraries

• Keypad
• Adafruit MPU6050
• Adafruit_VL53L0X

Install via Tools -> Manage libraries.

Board configuration

1. Set board to ESP32-S3 in Tools -> Board -> esp32 -> ESP32S3 Dev Module
2. Set USB mode to USB-OTG Tools -> USB Mode -> USB-OTG (TinyUSB)
3. Connect the dev board to the PC (UART USB port)
4. Select the according port in Tools -> Port
5. Optional: Set Core Debug Level to Debug in Tools -> Core Debug Level
6. Connect the dev board to the PC with the second USB port as well

Useful links

• Arduino-esp32 repository
• MIDI CC List for Continuous Controllers