I made a start on converting Polykits Pico DCO into cosmo format. There is goign to be a main board with the ribbon connector that can go either to a 1/4" Jack board or on to the ADSR.
Wow, looks awesome! I’m definitely going to build one. In newer versions there is also a FM input. Maybe you can add that as well. Thanks for all the effort
@savt22 , there’s a header on the board to connect to unused pins on the PICO.
Not really looked at the code but I assume the header is for “Future Use” and as such I could do other things with it on a side module. So I guess yes there is potential for stacking and detune.
As I mentioned it’s likely much less useful for modular, but I use the stacked and mono options all the time. 6 voices slightly detuned as a mono voice sounds so fat…
I built the pico dco though as a self-contained polysynth though.
@jkb the code on the FM input mentions a hardware fix for a voltage offset… Could you expand on this? the next parts willl be the ADSR, VCA and aditionla controls so would be good to understand the FM stage…
It’s been sent of to JLC, with some other projects. because of the weight the postage is with Fedex rather than China Post, so it could be here next week.
Made a start on the ADSR, removing two of the 8 chanels and making revisions mostly to fit with my overall plan.
I expect the boards, along with some others I slapped in the order may be here this week… Gives me a chance to finalise the ADSR v1 and get it in the pipeline if the VCDO works…
I like the idea of the LMNC 1222 ( or more correctly the analog vco ) but it’s been a barrier to me getting any consistent notes out of it ( or my own clone ) so hopefully the DCO will give me hope that I can manage to knock out a hardcore banging twinkle twinkle little star in tune
Staggeringly it seems to work , i did spend the morning bashing my brains wondering why it would only play every 6th note, i did only have one output mixed though.
It dawned on me eventually that the code was always assigning the next note output in sequence rather than starting from zero even if it was note off.
The output jacks have actually proved useful , even if i did make the jack board with 0 at the bottom and 5 at the top.