Hi all. I am working on a personal inventory RFID project that would be a shield for an Arduino Uno. I am somewhat knowledgeable but not an expert on EE topics. I am looking for a little help on adding the antenna component to the RFID device.
For my RFID reader, I purchased a surface-mount MFRC522 and have it soldered onto my shield. The MFRC522 works with 13.56MHz ISO 14443 MIFARE cards.
To actually read the RFID tags, my MFRC522 needs an external antenna. I do not need to do anything fancy; I simply need my chip to have the ability to scan RFID tags and obtain their identifying parameters when the tag is about 1 inch from the reader.
Does anyone have any experience with RFID or the MFRC522 that could recommend an antenna that I could purchase for use in this project (or any other way of making this antenna happen)?
As I mentioned, I am going for a low-cost solution that will enable only the most basic functionality of this reader. I prefer something that’s tiny enough to fit on a small portion of the Arduino Uno shield and that goes no higher than maybe 1 inch. The MFRC522 reader chip is only about the size of my pinky nail.
Also, I’m really hoping to stumble on someone who has done something like this before that wouldn’t mind guiding me through some of the basic steps of making this antenna happen. I am just a little lost as to how to start.
Thanks for any help.