Polyphonic synthesizer, first steps with DaisySeed (DIY MIDI module based on STM32, no arduino yet)

I've started trying out the Daisy™ Seed from electro-smith.
It's an embedded platform using the STM32 as a microcontroller including DAC, external RAM etc.
To get a first impression I've created a little polyphonic synthesizer project using the Open Source DSP Library (DaisySP).
In addition to that some voice processing etc. was required to get the synth working.
At the moment I do not have a direct comparison to the ESP32.

It is compatible with arduino but you can also just program with your C++ editor.
The STM32 board library has been updated in arduino recently and caused compiling issues.
Now I just worked with a makefile based project to get it running.
I think soon an arduino implementation would be also possible.
Finally the sources are basically the same (arduino does just the multi file compilation magic)

References:
https://www.electro-smith.com/daisy/d...
https://github.com/electro-smith/Dais...
https://github.com/electro-smith/DaisySP
https://github.com/electro-smith/libD...


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Intro: (0:00)
Overview: (0:50)
Hardware: (1:36)
(Basic)Oscillator: (1:52)
VariableSawOscillator: (4:02)
VariableShapeOscillator: (5:17)
Delay: (6:41)
ReverbSc: (7:48)
Unisono: (8:32)
Chorus: (9:12)
Overdrive: (9:48)
Tremolo: (12:31)
Outro: (13:06)