Pro Micro Supported ? about control-surface HOT 8 CLOSED

I have never tested the Pro Micro. The official Arduino Leonardo with the same microcontroller is supported, but I assume that the core USB firmware of the Pro Micro is different.

USB MIDI support on the ATMega32U4 is handled by the MIDIUSB library, so I suspect that the problem lies there. Could you try some of the examples that come with the MIDIUSB library?

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Thank you for the quick reply. That is good news, then I'm not (nescessarily : ) doing something wrong.

If you would like a pro micro for testing (no obligations of course) I would be very happy to donate a unit and shipping. Drop me a mail at [email protected] (remove dashes) with a postal address where you can be reached if you are interested.

Thank you, you can close the issue, I will dig into MIDIUSB to see where the hangup is.
BR Jesper

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And yes, you are completely correct, I have tried now, and no MIDIUSB lib based solutions seems to work on these particular units. LUFA solutions works fine however, so it must be some board config issue. I will research more.

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That's a bummer, I would've expected it to work, since it's basically the same chip. You could open an issue on the MIDIUSB GitHub page, or maybe ask SparkFun's support.

If you find a MIDI over USB library that does work on the Pro Micro, feel free to let me know. It's relatively easy to add support for it, all you need is a function to read a USB MIDI packet, and a function to write a USB MIDI packet. (And the necessary USB descriptors, endpoints and setup, of course, but that should happen under the hood.)

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Me too, it's a bit strange. I have opened issue #57 @ arduino-libraries\MIDIUSB to see if anyone knows anything. Only other library I have been able to get to work is LUFA, and if MIDIUSB is a dead end, I will start to try to isolate the nescessary parts from LUFA, it's quite a big package.

Thank you kindly for your interest in the matter and for opening up for adding new base libraries, - I will be sure to report my findings upon finalization of research.

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Hey Pieter. I just closed the issue again on MIDIUSB, the problem seems to be solved ! I burned a fresh bootloader to the unit with an uno, and after that everything worked normally. I suspect that the boards I have, simply was loaded with an ancient, wrong or incorrectly configured bootloader or all of the above.

Now I will study more and find out how bootloaders relate to USB descriptors, I need to know why it works now. I bet Grumpy Mike would probably love to explain it to me while ripping my a.. in half : P

Lets close the issue, I will not pursue it further for now, and do the actual project instead : ) Be sure to let me know if you want a pro micro for the lab, they're 2.5$ on Ali and i have a big bag of them so it's really nothing.

Thanks again for your help

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And on a completely different subject now that im actually up and running, - WOW the pot filter/hysteresis in the library works well. My gritty 1$ pots acts as precision instruments !

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Glad to hear you got it working!

The potentiometer filter took some trial and error, but I'm really happy with how they behave now.

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