Mike - K8LH
Well-Known Member
bananasiong said:Because previously I complained that the 7-segment display is not bright enough. If I use common cathode, the current sourced by the PIC is enough?
No, you'll still have the same problem. In fact, in my experiments these last few years I've found that common anode displays are slightly brighter than common cathode displays when you're directly driving the segments from PIC pins. It seems the PIC pins can sink slightly more current than than they can source. Or, there's a slightly higher voltage drop when sourcing current, or somthing like that.