super-sixteen VS ctag-tbd

I see designs with a single capacitor, some have diodes, some have inductors, some with a bit of everything like in the pic, and then there's Mutable Instrument schematics I don't follow at all yet. As I understand so far, the diodes protect against reverse polarity and I assume capacitors protect from current fluctuations?

I recently build a supersixteen sequencer with an arduino nano and it has zero noise, you could check the power section in the schematics, it uses some inductors and diodes in series, and some filtering caps

There's a guy Matthew Cieplak with a YT channel/company called Extralife who made a quite richly featured sequencer based on Arduino, and I think his code's up on Github - it's probably complicated by all the features he's built in but if you want to take a look, that's there...

The update just requires a standard USB AVR programmer with 6-pin header cable (here's one I like). The firmware update is available on the project github page, and installation details are included in the tutorial video and on the official update support thread on muffwiggler.

CTAG TBD is an ESP32 based universal module, look: https://github.com/ctag-fh-kiel/ctag-tbd

I've been curious about the Strampler, but noticed recently that most of the activity is now on the CTAG-TBD which is also ESP32 based. It already has an impressive set of FX and synth voice plugins, including several ports of Mutable Instruments ones.