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Beth’s prototype design, here, uses 100 turns of AWG 40 magnet wire, an ATtiny85 integrated circuit, a couple of surface-mount capacitors, and a duct-tape substrate sealed under a layer of clear packing tape. She reports that “the read range is practically indistinguishable from a mass-produced RFID card.” [via adafruit]

Sean Michael Ragan

Sean Michael Ragan

I am descended from 5,000 generations of tool-using primates. Also, I went to college and stuff. I am a long-time contributor to MAKE magazine and makezine.com. My work has also appeared in ReadyMade, c’t – Magazin für Computertechnik, and The Wall Street Journal.


  • http://www.adjiesoft.wordpress.com Adjiesoft

    Reblogged this on Blognya Rosmianto Aji Saputro and commented:
    Proyek keren lainnya yang mengimplementasikan ATTiny85. Proyek ini mengenai RFID yang dibuat sendiri, tentu saja coil juga harus digulung sendiri. Tanpa memakai tenaga baterai apapun. ATTiny85 tipe SOIC (tipe Surface Mount Device) ditenagai oleh arus yang dibangkitkan oleh coil yang terpapar sinyal elektromagnetik dari komunikasi yang dilakukan. Cool!