kelvinmead:
ok, this is getting pretty stupid now.ive changed the transistors on the anodes for the uln2803 and put current limiting resistors on the cathodes...
this chip has just taken most of the electronics out of it!
i still cannot get any of the lights to light up whatsoever...
Wrong-O**!**
The ULN2803 should provide the path to ground (for the cathodes.)
kelvinmead:
i just don't get the ++ part. i know that's what it needs to add calculations, but i haven't found it explained anywhere.
i ++;
is C for "increment i"
.