modrobert:
The voltage regulator can only convert a higher input voltage to 5V on these boards.
The reason we connect these boards to 3.3V unregulated is that the output will then not require level translation.

So in short: Keep using 3.3V from the PSX directly. This is how I designed it.


Ah ...

Running the 5v pro micro 16Mhz on 3.3v?
How's that working out? This always confused me in the readme. These atmel chips are not meant to be run on 3.3v 16mhz.
Yet, the mod is meant to run on 3.3v.

So is the codes optimised for 16mhz, or 8mhz?
I'm still looking into getting it to run reliably on ...