Pull request

[ledlaux]

Hello, could you kindly review and accept the latest pull request to the Test branch? It includes a cleaned-up README, additional comments related to the USB MIDI host code, and corrected attribution.

[copych]

Sorry for the delay, been busy, and not so familiar with git teamwork

[ledlaux]

No problem! This are my first pull requests to someones project, so learning to do teamwork too. Did you had a chance to test the usb midi host functionality?

[copych]

Unfortunately my only usb midi keyboard doesn't work with esp32s3 (s2) host, but works with rp2040. So I wait that maybe someday they improve esp tityusb to the level when my kbd would be recognized ) Also I'd like to know if someone have succeeded with setting a USB audio on a esp32s3 @44100 stereo, and even better a composite device to have both midi port and audio out for the synth.

[ledlaux]

Midi keyboard enumeration can be tricky with usb host drivers on this kind of boards for shure. You could open and issue on the usb midi host code author github regarding your keyboard:
https://github.com/enudenki/esp32-usb-host-midi-library/issues.

Also when i was exploring this function implementation i tested this code:
https://github.com/sauloverissimo/ESP32_Host_MIDI.

But the Enudenki code performed better and was more elegant. Ideally, i hope, those host midi functions will be integrated in the TinyUSB stack for the ESP32-S3 some day.

At this stage I haven't managed to connect SD card reader for the SF2 sampler. I got Waveshare microsd card reader (4bit as in your project), but code doesn't recognize it. Maybe it needs shorter cables and some newer sd card.

[ledlaux]

Also I'd like to know if someone have succeeded with setting a USB audio on a esp32s3 @44100 stereo, and even better a composite device to have both midi port and audio out for the synth.

Check the repository of atomic14. He managed to get usb audio to work on esp32-s3.
https://www.atomic14.com/2025/09/26/esp32-s3-usb-uac
and
https://docs.espressif.com/projects/esp-iot-solution/en/latest/usb/usb_device/usb_device_uac.html

But for now it works on ESP-IDF only.