How I built an RFID device without hurting myself
SAN JOSE, Calif.--I'm staring at a table covered in circuitry, a solderless "breadboard," a bunch of wire, an antenna, and some other components--all the things I've been given to build a rudimentary RFID reader--and I'm having serious thoughts about whether I'm in the right room.
I've certainly used RFID before--tiny radio frequency ID tags are increasingly showing up in everything from grocery store items to hospital wristbands to lift tickets. But the sum total of electronics that I've made in my life is, I'm now reminding myself, zero.
And yet, … Read more