SOLVED: How can I reduce ADC jitter

[Demon]

Ultimately, the system has to be able to read ADC while managing to 2-3 LED strips and 4 LCDs with PWM.

I'm trying a double PSU approach to see if the input PIC (right) can keep line noise to a minimum, and have all output functions on the output PIC (left).

Input functions will consume very little current, it's the output functions that will consume a lot more, and have multiple PWMs.




The only unknown is the rotary encoders; no idea if their rapid ON-OFF will create noise. I can always move them over to the output PIC.

At worse, I'd end up with a "clean" PIC, and a "noisy" PIC instead of input/output.