So all i've managed to finish is schematic for the PBC and not much more.

I'll add a pdf of it to the files and would love for some feedback.

the bigest source of uncertanty I have is in the way i am getting a negative votage. Firstly in the method itself more specificaly in the values for capacitors and resistors there. I managed to convinve myself that R66 MIGHT be needed but don't know if that is true. Pretty much all the values for the componenst there were taken from where the sun doesn't shine so please enlighten me.