andrewn

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• Does USB HID support USB MIDI?

  in Interfacing • 8 years, 8 months

  

  The reason I prefer MIDI over OSC support is because of the recent WebMIDI standard (some demo). I'm imagining some cool instruments/interfaces created with Pico that can be plugged into the USB port and then interact via a web page.

  I'm keen to see if this is possible so I'll try to find time to follow Gordon's suggestions for getting a custom firmware built. Not that I know what I'm doing.

  @loopMasta, let me know if you make any progress or if you fancy collaborating on it.

• Does USB HID support USB MIDI?

  @andrewn started

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  @andrewn replied
• Does USB HID support USB MIDI?

  in Interfacing • 8 years, 9 months

  

  Thanks for the swift reply Gordon. I hadn't seen the developments on that thread!

• Does USB HID support USB MIDI?

  in Interfacing • 8 years, 9 months

  

  Hi,

  I'm trying to work out if it's possible to use the new Pico USB HID support to get the Pico to work as a USB-MIDI controller.

  I want to be able to plug a Pico into the USB port of a computer and have the Pico send MIDI messages without any USB to MIDI adaptors in between.

  The Teensy 3 USB library seems to support this and HIDUINO does similar for the Arduino Uno.

  I've dug into the code to try and figure out how it's done. The Teensy 3 source has the Keyboard, Mouse, Joystick and MIDI descriptors in the same file, usb_desc.c.

  Mouse descriptors:
  https://github.com/PaulStoffregen/cores/­blob/master/teensy3/usb_desc.c#L159-L198­

  MIDI descriptors:
  https://github.com/PaulStoffregen/cores/­blob/master/teensy3/usb_desc.c#L482-L563­

  Is it possible to use the MIDI descriptors in the same way as the Espruino Keyboard, Mouse and Tablet examples? Or is the USB-MIDI interface different to the HID interface?

  I'm going to have a go at this but I thought it would be worth asking first as my USB knowledge is non-existent.

  Thanks for any help!
  Andrew