MIDI Synthesizer on STM32F407G_Discovery board.

• MIDI USB Host mode (for external USB midi keyboard or controller)
• 5 x Oscillators: virtual analog bandlimited sawtooth, bandlimited pulse wave, FM, sine, sub oscillator
• 4-pole resonant lowpass filter (TPT zero-delay feedback)
• 3 x Exponential ADSR envelopes
• Effects : Bitcrushing / rate decimator, stereo dub delay
• 2-inch LCD, LVGL library

https://github.com/JohannesRgnr/stm32f407g_MES_MiniSynth

Micro Tracker v.2
192 ppqn, 8 tracks, 3 voices polyphony/ track.
Polymeters & polyrhythms, generative capabilities, trig probabilities, trig conditions, randomization, random walk, Markov chains, pitch scaling, chord generation, arp, CC control, retrig, micro-timing. Midi clock In/Out.

8-track micro tracker for microcontroller, similar to Amiga's Protracker or Octamed. 

4 fx slots per step and per channel, trig probabilities, randomization, retrig, CC automation, chord mode, arp mode. 96 ppqn. Midi clock out. Midi over USB. Touchscreen control. 

Dynamical systems. Swarm, spring-mass system, gravity based sequencer, orbital dynamics.

Data sent as OSC messages.

Utility device. 4 CV inputs to USB.

• CV-to-OSC (Open Sound Control, range -5V... +5V)
• CV-to-MIDI CC (range -5V... +5V)
• CV/Gate-to-MIDI ( 1V/octave standard, range 0... 5V, i.e. 5 octaves)
• 4-ch. oscilloscope
• 4-ch. frequency counter.
• OLED screen

12 bits ADC