I am trying to accomplish something similar to what is on this website.
Essentially I am trying to use 4 RFID tags on 4 different sensors to trigger an event (relay triggering an electromagnet). When I use the Dumpinfo code from the RC522 library that reads a card I receive the uid for the card to be "04 16 D7 22 4C 58 81".
The code from github I am trying to use asks for something along the lines of {0x4B, 0x17, 0xBC, 0x79}.
Is there a way to convert the uid I am receiving to the other code (Hexidecimal or ASCII?? I'm not sure which one this is)
If anyone has a different example for me to look at I would also love to do that. I haven't made any changes to either code, but ran into the issue when I was trying to insert my UIDs into the GitHub code.
I have also considered using 4 different arduino nanos to feed into one microcontroller that will trigger the relay. That does not seem like the best route, but it may be easier to do.