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Topic: MFRC531 (Read 495 times) previous topic - next topic


Hi, hope you guys can help me. Currently, I am doing a project which about a tracking system using MFRC531 and Arduino. I have followed the connection stated in the datasheet. Then I tried to use the mfrc522 library to work on MFRC531, but in my serial monitor, it shows warning as below.

Firmware version : 0x0 = (unknown)
WARNING: Commnuication failure, is the MFRC522 properly connected?
Scan PICC to see UID, SAK, type, and data blocks.....


MFRC522 is not a MFRC531. So no wonder it won't work.
Mrs Drew
http://www.uk-pcb.co.uk - UK PCB Fab Company
I will design & code for you, but I will also charge you (PM me)
If you don't like my answers, realize : I'm not being cheeky, I'm Just trying to prompt you to use your own brain/google etc.


So how do I make it work?


So how do I make it work?
Use the right library. If one doesn't exist, write one.
The art of getting good answers lies in asking good questions.

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