Triode
Well-Known Member
I haven't done anything with serial output yet, and I'm trying to get started. I want to make a PIC18F4550 load a string of 3 shift registers (74HC595), 8 outputs each for a total of 24 bits. Ideally it would load 24 bit variables straight into them so it's easy to get them from arrays. Eventually the goal is to drive an LED matrix, where the rows are set by the shift registers, and the columns are cycled with PNP transistors connected to a decade counter. But for now I'm just looking for the best way to load the shift registers.