I am looking how to hook up RFID sensor MFRC522 with Arduino Due. I can't seem to make it run and I am curious where can I find specific information on this specific setup? I have a Mega2560 which runs out of the box, but for some reason I can't get the Due to find the sensor at all.
The Due runs on 3.3V while the Mega2560 runs on 5V. There are other differences but I'm almost sure your problems come from that difference. We cannot tell you what exactly you did wrong because you failed to provide the necessary information, there is not code and no wiring diagram or your setup. Did you really read the sticky post at the top of the topic ("How to use this forum - please read")?