Open Theremin V4 with MIDI

This is just to inform you that Open Theremin V4 with MIDI is in Beta state and I am considering delivering official V1.0 in a few days.

I recently had opportunity to test the Open Theremin V4 (very nice !) and could finalize my implementation of the MIDI feature.

I merged recent evolutions from Thierry.

Don't hesitate to have a look at the Github repository.

Any feedback is welcome :-)

V4, but still uses slow ancient 8-bit MCU.

Yes, it is basically a merge of OTv3 shield and arduino uno in a single board. This let some I/O port on the MCU to manage a complete set of CV/Gate outputs. And now you can add a MIDI interface to V4.

Of course, it is an entry level instrument, but for the price you have have a prety good linear theremin that can control some analog or digital synths in an Euro-rack form factor. It opens the field for extensions... (e.g. Open Theremin + Oscillator module + filter module)

It is in V1.0 !

Just the begining of the story and a base for improvement...

Just a few words to say that I removed all calculation in float 32 bits from my MIDI code and replaced it by proper fixed point mathematics.

If you want to have a look.

Thanks to Crisbei and Dewster for help and encouragement

And I did the same change for Open Theremin V3 with MIDI.