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Regarding the Mifare Classic, I've been looking into adding NDEF formatting to a Mifare Classic tag but so far I have been unsuccessful. I've tried two different readers, one of which appears as a SmartCard device and one that appears as a Proximity device. Both of them have little in the way of software beyond the low-level device drivers. The Sony RC-S380 is the one with a Proximity Device driver, which allows me to code a Windows Desktop applocation that reads and writes tags in any of the four standard NFC Forum formats, but when I put a Mifare Classic 1K card on the reader, I don't even get a Device Arrived event notification. Hopefully, I will be able to do more after I begin using the SDK to send commands directly to the reader.
I found a formatting utility that claims to be able to add NDEF formatting to a Mifare Classic tag, but unfortunately it only runs on Linux and not on Windows. The reason I want to add NDEF formatting is that my Windows Phone can read/write Mifare Classic tags if they're NDEF formatted, but not otherwise. To make things even more frustrating, you can't add the NDEF formatting using a Windows Phone.
@amal, would it be possible to get a Mifare glass tag with the NDEF formatting already on it? That would make it a lot more useful to me as a Windows Phone user..
@amal, you should be receiving the Mifare S50 tag today, but it is non-functional at the moment. If you want to NDEF format a working tag, we can work out the arrangements via private email.
In response to your question, I do have an ACR122U as well as a Sony SC-S380 reader/writer but haven't been able to get either of them to work with a Mifare Classic tag. Admittedly, I have been preoccupied with other things lately and haven't been able to devote enough time to developing any software. If you have something that works, I would be interested in looking at the source code and/or getting the executable so that I can NDEF format my own (paper) tags. Don't send me the source code unless you don't mind having me put it into my own Windows Desktop application. I just got a few NDEF formatted Mifare tags and they work just fine with Windows Phone 8.
No hurry though. I need to heal up for at least a month before I'll be ready to implant anything.
BTW, that video I sent you might be of interest to readers of this forum. Mind if I post the YouTube link in a new thread?
As you know I have one of your mifare classic implants. For interfacing with it I have a nexus 4, which won't do more than read the UID, and will only do that if I get the phone in just the right position. I have an alcatel ot-922, which is able to read and write the entire tag, and has no issues about positioning. and I have a proxmark3 with official PCB HF antenna. no matter what I do I can't get the prox to read the implant. I also tried building my own antenna following this https://code.google.com/p/proxmark3/wiki/Antennas, but couldn't even read normal credit card size tags.