iButton

And what the device does is it supports different radio frequencies.

Uh, uh, so, uh, from the 13.56 megahertz in f- NFC range, 125 kilohertz RFID, infrared, iButton, One-Wire, Bluetooth, and other capabilities.

So all this is built into this device, and then it has an expansion bus on the top where you can plug in modules you make yourself that do other things.

Uh, again, uh, or so I've been told by a friend.