I have a reset button on the master PIC, and I'd like to reset all the slaves internally. This is what I have so far:




I found formulas to calculate the base resistor, like this one:

https://breadboardcircuits.com/how-transistors-work/


But they're dependent on preliminary calculations done for the load current, and I have no clue how that is calculated with a PIC pin. I see several current loads in the datasheet for the 16F1933, but no clue which is the appropriate one to use in the formulas.