I'm a relative newbie to programming and electronics, with a lot of perseverance I've built my own Arduino controlled home brewery and now my attention has turned to serving the beer! I've got a beer fridge (kegerator) with 4 taps and want to display the amount left in each keg. I'm concentrating on the display first.
I've got 4 CC and 4CA dual segment displays:
I also have a bunch of 74HC595N shift registers. From my research I believe its possible to drive each display via a '595 and PNP / NPN transistors to sink /source current, depending on which type of display is used (not forgetting current limiting resistors on each data pin on the display). I really could do with some pointers as to a schematic using a 328 Arduino chip, I've seen loads of different ways to drive 7 segment displays and I'm a wee bit baffled by it all!