The old way of making an Arduino MIDI USB host to MIDI DIN converter consists of an Uno, a USB host shield, and a MIDI DIN shield.
This project uses an Adafruit Trinket M0 which has USB host capability. The USB Host Library for SAMD and a USB OTG to USB host cable or adapter is required.
- MIDI Library by Forty Seven Effects
- USB Host Library for SAMD
- 1 x Trinket M0
- 2 x 220 Ohm resistors
- 1 x .1 uF ceramic capacitor
- 1 x 5 pin DIN connector
- 1 x TI SN74AHCT125, Logic level converter and driver
- 1 x USB OTG to host cable or adapter
[dsp-G1 synth]https://hackaday.io/project/161652-portable-midi-dsp-g1-synth