[bxguff]

Pocket operator-esque setup, very cool

[makmanalp]

Just got a PO-33 and very psyched with it, though I've had some thoughts about whether you couldn't leverage the LCD a bit better to shift it from semi-serious to fully serious. E.g. right now in the sequencer it's impossible to know which specific instrument is playing. Anyway, it would have been really cool to have the OS be open and flashable and spend a little bit of time to make little papercuts like that better. I was looking into how hard it would be to put something like csound in a tiny board and make my own, but when I look at how minimal that single header file synth is, I'm left wondering if that's too much.

[pierrec]

I don't know about CSound, but Faust works well on microcontrollers, in fact that's one of its main use cases. Note that Faust focuses more on DSP, synthesis and effects, not so much on sequencing and higher-level music organization. I've found combining Faust (for low level) with any general-purpose language (for high level) works well for a lot of things.

https://faustdoc.grame.fr/tutorials/esp32/

[bxguff]

Theres some in-depth breakdowns for the PO 12,14,16 here(http://hackingthepo.weebly.com/) if you're interested! I have no idea about the po33 and if the juice is worth the squeeze, but they're cheap enough to tear apart so go for it.

[ben_]

If you're looking for an open source version of the PO-33 (without the nifty little screen) there's the recently released zeptocore[1].

[1] https://zeptocore.com