Hi Just a quick update, the revision 2 PCB is back from seeed studios (where EasyEda make their boards) and I've assembled most of it minus a couple of components I'm still waiting for, I've managed to power it on and check the programmer can communicate (always a good start!) and will be testing it over the next few days. I've already had a re-think on the RFID and decided to put it on a daughter board to allow changing from a 125Khz to a 13.5Mhz system for another customer so there will be a rev 3 board sometime soon (hopefully before September as I'm away for 3 weeks in UK then)