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Microbit keyboard (midi-Bit)

by BatGlenn, published

Microbit keyboard (midi-Bit) by BatGlenn Apr 21, 2017
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Summary

So these are the 3d printed parts for a competition entry to make an intrument powered by the microbit. It's my first ever 3d design so admitedly it's not great lol if you have any interest in printing this leave me a comment and i'll get back to you and update this description.

Cheers

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Great stuff! As it happens, I've had a sparkfun musical instrument shield laying around for a couple of years that I have never touched. I never really got into the arduino very deeply *but I recently got into playing with the micro:bit, and I love it. I've programmed some cool things.

I would love to know more about how to make this shield work with the microbit. Any information about how to do this, would be appreciated... I'm not sure where to start there, so even a link would be useful.

I expect perhaps certain commends are sent from the microbit through it's serial commands. Is that right? It might sound like I know what I'm talking about, but I've not yet used the microbit serial functionality.

Last question - does your keyboard take advantage of the polyphonic capabilities of the shield? And if not, is it somehow limited by the scope of the microbit in this regard?

Hey dude, thanks for the comment =)
I popped a reply on the youtube vid, but here it is again in case anyone else has a similar question:

Yes, it uses the UART interface on the Micro:bit to send MIDI commands. Getting this to work was really a case of taking the datasheet and example program which Sparkfun has on the product page and trying to translate the Arduino serial commands into Python serial. The demo script is fairly well commented so that cut down on a lot of the work. I didn’t try setting up polyphony, but sending a signal to a separate channel seems to be as simple as changing one hex value in the note-on signal.

The MidiBit was put together very quickly to get it in to the Maplin Musical MicroBit competition which we unfortunately didn’t win, but I’ve always wanted to go back to it and overhaul it. Maybe once we get that done we’ll see if we can work polyphony into it and post the code somewhere.

Hope this is helpful.

Best of luck!

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