So this is an (probably simple) interesting little issue I'm having. Just bought an Arduino UNO (R2) and I'm playing around with some LED's and matrixes. I have no problems running programs on it, the only problem is that HIGH and LOW seem to be inverted. So basically if I want to light a LED I have to write:
and to turn it off again:
Anyone know what might be causing this (or if I am missing something fundamental here)? Not that it's a real problem for writing programs, it's just a bit harder to read them. Still weird though!