Here is something I’m cooking up for the recently acquired reSEMble monosynth. It’s a MIDI to CV converter based on a Pico stamp type RP2040 and an 8 channel DAC, it’s capable of 3 pitch CV outputs for a sort of paraphonic dynamic voicing, but in normal mode all 3 CVs are the same but 2 & 3 can be detuned. It responds the pitchbend, aftertouch and cc messages, but primarily everything can be controlled by the onboard menus and settings stored on the Pico. It also has glide in mono mode. The LFO is the usual Electric Druid Taplfo3 with 16 waveforms that are merged into the CV lines with variable depth control etc. Gate and trigger outputs are +5V. I’m just using a full sized YD-RP2040 for debugging before I shrink it down into the Waveshare RP2040 Zero.
Great stuff indeed!
As I have mentioned before; you have the makings of a book here!
That looks like it’s going to be an excellent module. Thanks for giving me some ideas for my own stuff!
Here it is in Eurorack form, I don’t know what the HP is as I just built this to fit into the end of a home made case by another synth DIY guy.
Finally got it wired up with new IDC ribbons for the back plane and tested each module, replaced faulty parts and fixed the very dim LEDs. Added my own selection of knobs from AliExpress.
The MIDI to CV is almost completed now, more features have been added such as MIDI LFO sync, Poly mode (dynamic Unison). The note priority has been fixed to allow trills where the note will move between the held and played note and back again on release and also send a trigger to restart an envelope. All settings are saved and recalled on startup.
Finished the MIDI to CV interface and repairs to the reSEMble synth. Just managed to squeeze in the converter on the end of the pre made case, hence why my display is portrait and not landscape. It works in polymode where 1 note sounds 3 oscillators and each additional key played upto 3 total spreads the VCOs across the notes and retriggers the envelope, I’m thinking I can make the retriggers an option in the menu. I added a little aftertouch that sends the LFO of the MIDI to CV to the VCO CVs. All settings are saved 10 seconds after the last menu press. I was thinking of adding an LFO depth that is not controlled by aftertouch or the wheel, just permanently there, but maybe also with a delayed LFO based on the note and that could be multitriggered or normal.
Update: I added the FM direct with delayed LFO with retrigger.
