> I am looking to make a simple linear psu using lm317/337's
> adjustable regulators. Basically, they use a pot from 0 -> 5k
> to adjust the Vout. I was wondering if there is a way I can
> control a resistance using a 16f628, so I can incorporate a
> sort of digital feel to my psu. Thank you for your time

This is what I was referring to wrt using a small FET on the adj
pin to alter the voltage. Obviously you do need something bigger
for the 1.5A o/p switching. You could make a low-side switch
with a 5V logic FET, ie your load goes between the o/p of the
317 and the D of the FET. The FET's S goes to 0V and the
micro control goes to G

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