Version 1.2 is up! Now the code supports using a separate MIDI output port to communicate data via Bluetooth. I also added support for the BMP180 - a barometric pressure sensor used to read changes in bellow pressure and convert it into changes in MIDI expression.
You can view the full changelog here.
Here’s a video demonstrating the use of the bellows to control dynamics:
And just for fun, here’s a video of the MIDI accordion sounding like a real accordion:
At this point my accordion supports all of the features present in the AccordionMega project (except for register shifting). However, I’d like to continue development on this project - specifically, I want to add additional MIDI controllers (mod wheel, balance knob, instrument change buttons, etc.). I may also add switches to allow turning the Bluetooth and BMP on and off without having to recompile the code. I’m sure there are a ton of things I can do to add more awesome to this instrument; I’ll have to keep playing around with it and see what I come up with…