The Defcon Badge

I made it over to pre-registration earlier and scored my badge. It’s a pretty interesting piece of work by [kingpin]. It’s got 95 SMD leds forming a matrix display. The top and bottom icons on the badge are touch sensitive buttons. It’s got selectable modes, programmable text scrolling, a pre-set POV mode and adjustable scrolling speed.

Update: I started digging through the CD they’re handing out at registration and found the schematics, BOM, layout, everything. I’ll have it posted as soon as it finishes uploading over my evdo connection. The board has provisions for wireless, 3 axis accelerometer, serial interface and it’s using a Freescale QF16 processor. (I tried looking up the chip number earlier, but utterly failed)

Update 2: I’m putting interesting defcon files up here. All the badge info I have is online. I noticed a confidentiality notice on one of the files, I’m assuming that it’s ok to distribute since they’re distributing this freely on the conference CD. If I hear otherwise, I’ll have to pull it.


  1. matt bee says:

    one word: WOW!

    Damn, that looks really tight!

  2. David says:

    Neat, not that I’m not impressed or anything, but does it have anything else cool? Have you run it by an RFID scanner yet?

  3. knvb1123 says:

    How do you change the custom message?

  4. Ironchief says:

    If only I could be there :( Is there any simple way to make a fake badge this year?

  5. buzz says:

    nice! Anybody plan to rip one apart and DIY more of them? I’d like plans to make a few for other purposes…

  6. Skyler Orlando says:

    Do you get to keep the badge after the conference?

  7. Ph@ntom2kode says:


  8. Will says:

    w00t my plane leaves in ~ 2 hours and i’ll have my badge soon after.

  9. threepointone says:

    qf16 looks a lot more like a chip package than an actual IC.

    The actual IC is probably buried in the BOM somewhere, but I’d guess it’s a standard 68xxx series microcontroller.

    How thin is it, though?

  10. Eureka says:

    Looks like the Binary on the back of the badge says “Go Voice” if converted to ascii. Btw, hope to see ya at the con!

  11. Computer_kid says:

    Mod idea:
    Wireless Pong!

  12. tillin9 says:

    Nice! How about a larger image (or youtube video?) of it in action?

  13. tillin9 says:

    Nice! How about a larger image (or youtube video?) of it in action?

  14. WmD says:

    I didn’t put too much thought into is, but it looks like the datasheet for the processor is here:

    I love; it’s the best.

  15. Tavor says:

    How about scanning the book, for those of us not fortunate enough to be able to attend?

  16. Kaine says:

    and some hi-res photos, I wish i was able to go to DC 15 but i got banned from the riv. :( DAMN YOU ASS HOLE!!!!!!

  17. Hey, what about a packed file with all the docs/code/etc? Great job, Kingpin!!!

  18. scott says:

    Its open source free and for use to remake and use…. but the schematics and boards (id love to print my own) are PDF files how does one make a board from a PDF?

    Also a PDF that is password protected from ANYTHING but looking at it and printing it….

    Would love some EAGLE Cad files all ready know a few things id love to change and modify to make a whole new one :)

  19. rabbi says:

    Here’s the video of mlp showing off the winning entry:

    We spent nearly all of DEFCON hacking on those badges, but it was probably the most fun I’ve had at the con since DC8.

  20. Courtney says:

    But no guess!

  21. I am glad everyone liked the badges we made for Defcon 15 as well as last years badges. If you have questions on how to create a unique item from a PDF or anything else that has to do with PC boards please feel free to e-mail me. Thanks

  22. gabe says:

    I love cons.

  23. thanks for this info taken ages to find this.

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