Learning. Be gentle.
I have a basic Uno test setup with 3 x 12V opto-inputs directing 3 x 12V PWM MOSFET-resistive-outputs rather nicely.
So... what if I wanted to do like this guy (32 MOSFET Board) and have up to 32 x 12V MOSFETS instead of just 3?
Is this the most reasonable way to control multiple, independent higher power (500ma-5A resistive load) outputs?
The multiplexers I "get" but 1:1 MOSFET/Channel seems a bit medieval... but strangely logical.
Is there a better way?