> >As well as taking care of the LED's power requirements, they are > latching devices (ie set and forget), which simplifies s/w > > > Do you mean that if you use them you don't need to use current > limiting resistors? No, you still need resistors. See gif linked to. The power for the LEDs goes through the driver IC, not the PIC -- http://www.piclist.com PIC/SX FAQ & list archive View/change your membership options at http://mailman.mit.edu/mailman/listinfo/piclist