A while back (years ago) I got an RFID reader/writer.
However I quickly got discouraged not being able to figure out how to write to the card and could only read a cards 'id' and then use it (hard coded) in any sketch..
I think I even posted a thread on it.. but this was the only one I could find: https://forum.arduino.cc/index.php?topic=89700.0
documentation was insanely painful if I recall.
I DO NOT WANT AN SPI BASED ONE!
I want a SERIAL/UART, 13.56MHz, reader/writer based one. Preferably cheaper and small in nature.
My thought process is that getting a serial based one will be easier to understand documentation and be able to actually READ & WRITE to the cards themselves.. using them for allowance cards.. or laundry cards...etc something that can be updated dynamically when read...etc
So my question is.. what SERIAL/UART based RFID reader/writers have you guys used? Pros? Cons? on your specific model/project?
Libraries available/used with your hardware?
I looked on ebay, ... found some that look promising. But to be honest.. when I read the descriptions..
they mention all protocols.. SERIAL, SPI, I2C
so maybe a physical setting on the board? (I always question things like this)
All communication/feedback/suggestions are appreciated.