PC unlocking with an xNT
Hi. I've had my xNT about a year now and have finally got round to making something other than an Ezon lock work with it. My current (almost finished) project is to unlock my PC with the implant.
It basically a NFC reader that will type "Ctrl-Alt-Del [password] enter" when it detects my implant's ID. It acts as a USB keyboard so that I could use it at work without having to install any software that might not be approved by the infrastructure guys.
The core of it is a MSP430F5510 microcontroller and a TRF7970A NFC transceiver. The antenna is a custom inductor antenna that works reasonably well with the xNT. Not an amazing range, but less fussy on opsition than a PCB antenna. I can't take the credit for the antenna design as that was the work of Mathieu Stephan.
It can also be done with some off-the-shelf development boards which was version 1.0.
Anyway, if anyone's interested, let me know. I'm not trying to sell these. I'm happy to share the design (hardware and software) with anyone who wants it. I might be able make a few and sell them at cost, but don't really have the time.
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