ESP32-S2/S3 and USB MIDI

[thijstriemstra]

Looks like the ESP32-S2 can also be used as a USB MIDI device(?), like Teensy can.

Good detailed video of it can be found here: https://www.youtube.com/watch?v=XnqDEV21BSA

Looks like it uses EspTinyUSB. They have a MIDI example here: https://github.com/chegewara/EspTinyUSB/tree/master/examples/device/midi

More about it on hackster.io: https://www.hackster.io/news/create-custom-usb-devices-with-the-esp32s2stick-458bf370a522

TinyUSB also mentions there's support for the ESP32-S3.

Hopefully this will allow us to skip Hairless MIDI when using ESP32(-S2/S3)?

[thijstriemstra]

Turns out ESP32-S2 is single-core, most likely not powerful enough for Edrumulus. The ESP32-S3 is dual-core though and looks like the S2's big brother.

ESP32-S3 is not cheap though (yet) at 16,70 euro for a board. So compared to Teensy 4.x it's maybe not a good alternative yet (as teensy is little bit more expensive but much faster).

[thijstriemstra]

@corrados any thoughts on the S3 being able to handle both processing and midi usb, do you think it'll be fast enough?

[corrados]

If it is a dual-core 240 MHz then it should have comparable speed as the ESP32 you use right now, I assume.

[leendalex1993]

Nice

[thijstriemstra]

What specific ESP32-S3 board are you going to test with @corrados? I'll order the same for testing. And will edrumulus support usb midi when s3 is implemented/tested?

[corrados]

What specific ESP32-S3 board are you #72 (comment) with @corrados?

I have ordered this one: https://de.aliexpress.com/item/1005004637451669.html

And will edrumulus support usb midi when s3 is implemented/tested?

Good question. I hope it will work but I cannot guarantee...

[thijstriemstra]

Good question. I hope it will work but I cannot guarantee...

I should've phrased it differently. I'm glad to hear it's on the roadmap!

[davy39]

ESP32-S3 can be use with usb midi with tinyUSB with this PR #136 .
It seems to work for me without problem, feel free to try it as well :)

[thijstriemstra]

It seems to work for me without problem, feel free to try it as well :)

That's awesome! What esp32-s3 board did you test it with?

[davy39]

Both esp32-s3-devkitc-1 and Lolin S3 seems to work ok.