I built this arduino based WiFi swipe card reader for work. The goal is to let surgeons swipe in and out of the operating room and have it set their pages to auto forward to the phone in the OR or back to their cell phone so that they don't need to consult their cell phones when scrubbed in.
Reading the I class HID cards was kind of tricky because these ones were 64 bit and I couldn't find any example description of the format the data was in. Now I need to get a chip programmer and try and transfer it to an even smaller format so that I can mass produce em.

Ditto.... I kinda wish I was a tech geek sometimes. But then I just love being all about beauty products...
Waay cool! :)