I'm making a children's story printer for a project but I'm really struggling with the coding using multiple RFID readers and I was hoping someone here may be able to point me in the right direction of what I need to understand to make my project work.
The idea is to use 3 RFID readers (MFRC522) that when they are all populated with an RFID tag the user will be able to push a button that will print out 3 images (like a comic strip) in the order they are placed on the RFID readers. So essentially each RFID tag will be assigned a bitmap - I have previously got the printer going with these. When each RFID has a tag on it the user will be able to press a button that will initialise the print.
I think I have the wiring sorted and I understand how to create the bitmaps and how to tell the printer to print them. It's just the coding for the RFID readers I am struggling with.
How do I make the RFID readers operate alongside each other to print different combinations?
How do I initially assign each RFID a reference name and string to be filled with the RFID tag?
Hopefully this makes sense I just need a bit of a push int he right direction as I haven't found much on using multiple RFID readers.