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A comment on NFC Ring.

Re:NFC Ring by cieplok on Saturday July 20, 2013 @02:31PM (#6076053)
I cannot find any informations about size of data that can be stored in NFC Ring. I hope this is not one of this with 137 bytes. Anybody knows the memory capacity of a tag?
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Re:NFC Ring by DanBC on Saturday July 20, 2013 @02:55PM (#6076112)
They're using a NTAG203.

2 is a "platform indicator", 0 is a generation number, and 3 is the code number for the memory size. 3 means 128 to 256 bytes. (0 is less than 64 bytes; 1 is 64-96 bytes; 2 is 96-128 bytes)

(http://www.nxp.com/documents/short_data_sheet/NTAG203_SDS.pd...)

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