Some info:
Working with the CR95HF NFC Reader/writer. NFC tag is a Mifare Ultralight EV1, ISO14443A type 2 tag..
My current anticollision sequence is as following (I send the commands with sendreceive of the CR95HF library):
REQA "2607"
ATQA "80054400280000"
Anticollision 1 "932008"
Answer anticollision 1 "800888044AE422280000"
Select 1 "937088044AE42228"
Select 1 Acknowledgement "800604DA17080000"
Anticollision 2 "952008"
Answer anticollision 2 "80085A734D81E5280000"
So at this point you know the ID of my tag, in this case its: 044AE45A734D81
However, to ''confirm'' to the reader that this is the whole tag, the select 2 step needs to be executed. I try the following:
"9570" + part of ID retrieved during Anticollision 2 step + "52" (also from anticollision 2 answer) + "28" = "95705A734D815228"
This results in not finding any tags. How does this work? From what parts is the Select 2 statement built?
