Defcon Badges

defcon badge

Defcon is off to an incredibly slow start; It’s already 2 hours behind because of safety inspections (not surprising). I wouldn’t be too annoyed, but the first talk of the day is Joe Grand explaining the LED badges. They apparently made 6,055 of these LED badges. There is a PIC10F202 on the back and a switch to change between different flash modes. He even included solder pads to reprogram it. They’re encouraging people to hack the badges and come up with something new. More pictures after the break.

Joe Grand’s operates Grand Idea Studios and has quite a few projects on his site. He also talked at Maker Faire about his Simon game.

badge front
badge back
badge detail

54 thoughts on “Defcon Badges

  1. AM transmitter. The internal oscillator is 4 MHz; it wouldn’t be hard to make a divide-by-4 output at 1 MHz (center of the 525 kHz to 1715 kHz AM radio band). It would be on-off keying, so sound quality would be limited. Still, it could beep out a little tune.

    You could use the OSCCAL register to make primitive FM, but I don’t know how fast the internal oscillator changes frequency. The main trouble is that most FM radios only tune in much higher frequencies – 88-108 MHz; the microcontroller is probably designed to not produce harmonic noise in that range.

    Oh well. Wish I was there so I could try this. I wonder if anyone there has an AM radio.

  2. +1 to make them a tv-killer remote :P

    Hey Steve,

    What is wrong with you? you seem to have a phobia of LED’s

    I’ll tell you what, nobody is listening to you.

    Nobody has been listening to you for a long time because every time you see LED’s you go “OMGZ0R LED POWERED RANGEFINDER MY DAUGHTER MADE ONE OF THEM IN YEAR 2”

    Perhaps if you had more friends you wouldn’t need to waste your time here. that is all i am going to say to you.

  3. hey guys, lets stop arguing with each other, and get down to the real thing we all want, persuading eliot to ship these things out.

    just wanna comment about one comment (lol)

    23: Hey Steve,

    What is wrong with you? you seem to have a phobia of LED’s

    I’ll tell you what, nobody is listening to you.

    well clearly dear sah you are because you are taking the time to read his comments and remark to them. you can’t listen on the internet, you can only read. leave the guy alone. @_@

  4. the badges arent too bad…
    They are kind of big and the strap is aquward… either way its good to be at defcon. PS if you want help with anything drop me a line you have my number..im the one with the psp. :)

  5. I bet you will see these badges for-sale.
    Wish I was at defcon.

    Hey Steve,
    If your trying to impress someone, learning to spell would help.

    realy = really teck = tech peace = piece

  6. I’d like to see some biofeedback mods to that puppy. Maybe a heart rate monitor? It would be pretty cool to put it over your heart so people would have a visual representation of your pulse. Very visceral ya know?

    You could probably hack something like that together with one of those pulse watches some people wear when they exercise.

    Anyhoo, wish I could be there too! Why must all the fun conferences happen to the west of me!

  7. Oh yeah, steve, john, and dylan, you guys suck, and your 5 year old daughter, steve, did not make the SIMPLEST of electronics so shut-up, john, I can hack and know several hackers who DON’t call themselves “1337 h4x0r2”, and dylan, I’m on your side except this idea is great, DEFCON RULES!
    A led badge that you can reprogram is awesome, I wish I had one!

  8. i usually don’t post EVER but i’m sick of this little shit steve trolling every post about fscking leds.
    Hackaday is going to lose it’s audience if they don’t get off their asses, pick up the ban stick and smack these idiots back to myspace or slashdot where they belong.

  9. #33 – Yes, many PICs do support ADC, though not this one.

    Re: steve. Wow. It’s always been easy for people to ignore the first post, but some people seem to be finding that harder and harder. Re #43, the site will not lose popularity based on one troll’s posting. Comments will lose focus based on a thread of people’s replies though.

  10. slashdot?! Don’t tar us with that brush! We have comment moderation for a reason, so we don’t have to put up with that crap. Myspace, I’ll agree with you there, though ^_~.

    I’m still undecided whether Steve is 11, or he’s just a troll who likes to get us all excited. In either case, don’t feed the trolls.

    -Tommi =^_^=

  11. Personaly I think “fake” steve (although I think they all maybe one and the same) needs the IP filter treatment.
    The badge is a cool idea. I have never worked with electronics extensivly so I am not a hacker yet, buy I would love to be.
    Defcon rules! ^_^ Enjoy the show! (If they would move the show to Minnesota that would be cool!)

  12. hi its the troll here PMSL u sad peopel and my daughter at 5 years old did put one of these badges together but she got more sense now so she has nothing to do with leds she says there to childish and she is so right and yes i am more inteligent than u lot so come on lets have some decent hacks and plz keep feeding the troll PMSL

  13. LED’s are 1337. I think these badges are 100% hackable.

    BTW, can someone get me steve’s IP so I can hack his machine (probably some Windoze p.o.s.) and stop him from ever showing up on hackaday anymore?

  14. “Please keep your comments relevant to this blog entry: inappropriate or purely promotional comments may be removed.”

    I think Eliot should just remove Steve’s posts. All he does is derail thread after thread. If this was my site, I would probably ban his IP as well.

  15. HaX80r, I wish you didn’t say the second part of #49. You have no idea how much of a wanna be you look like. No offence. And finally if you could hack him, you would not need someone to tell you his IP directly.

    PS steve please don’t derail these hacks, you may not consider them hacks but others do.

    For post #1 what do you consider cool, why are LEDs so uncool? (it is not the LEDs that we care about but the controller circuit/chip)

    Finally steve what kind of a father are you, if at all? How long were you at the doctors office with you daughter treating her burn wounds from the soldering iron?

    I apologize for my grammer, english is not my native language.

  16. first of all my daughter is of utmost importance to me have u ever heard of cold solder secondly jason ur not clever enough to hack my system but r welcome to try and who made u the boss correct me if iam wrong but i think eliot is the boss and i am not a wanabe i am in my own right more advanced than u will ever no led ciurcit r ok its the fuss thats made aboute the diode its not a high teck peac of kitt is it lets be honest
    led

  17. steve

    with every comment you post. we get more facts of why ,your not more advanced than the 12 year old you seem to be.

    we do not believe you have a kid or could even get laid. so please never post again. your creditability is very much in question.

    as for the badge nice trinket.

  18. I like the tv-b-gone idea. But, its a badge, i think its a waste of time to hack it. BUT, it IS a hack nonetheless and should be respected as the thoughts and opinions of someone else. Therefore, steve should keep his adolescent opinions to himself and this site should continue getting hack entries of all shapes and sizes.

  19. LOL

    LEDs suk need to ues valves instead olol my daughter made her first radeo teliscope at 5 with no leds and fully valves and lightbulbts leds are usless and this hak suks cos it uses leds

  20. #27 gave me a great idea; hook the LEDs up to a Penile plethysmograph, AKA a tumescence monitor. Measures male sexual arousal and displays the results in a visual form for the world to see! Perfect for bars and nightclubs.

  21. I kinda agree with steve (in a small way) that hacking something this simple is kinda pointless, though, on the other hand, i do respect all the cool ideas you have come up with on hacking it.

    AM transmitter… hmm… morse code… !!! DeCsS code transmitter! (or something equally ‘illegal’ (or ‘illegal’ in the eyes of the gov, which if they had their ways, would be everything.)

  22. @12: The PIC uses Harvard architecture, you cannot write to the Program memory, only registers, RAM (24 Bytes in 10F202), and EEPROM (0 bytes in the 10F202).

    @25: That appears that it may be In Circuit Serial Programming (ICSP) header. The square pin would be pin 1 of the header.
    See ICSP Guide: http://ww1.microchip.com/downloads/en/DeviceDoc/30277d.pdf

    I just noticed that this flash device is cheaper than the One-Time-Programmable chips (e.g. 16C602A) in quanity, cool.

  23. Come on, I am DefCon and part of the conference was not even looking to see if you ad a badge and the other part was being guarded by some old men who don’t even know how to program a VCR, let alone tell iff a badge is legit or not. I never saw anyone challenged about their badge. In a matter of minutes I could mill out an off-white piece of plastic, punch two large blue LED through and connect with a little battery in the back. Who cares if it flashes or not. Just to show how well the security is, I hacked DefCon by going up to the Skybox area, down the back stairs and a DUMB security guard let me in the back door. I wandered the area 1 hour before everyone else was let in.

  24. Haha, Steve’s trollish counterpart is hilarious.

    But besides that, poor grammar isnt a good way to troll; just so oldschool. Nowadays we think something witty up and with proper spelling and all you degrade someone else’s character. Example:

    Steve, you shouldnt take the effort to uncram your hands from your asshole the next time you want to spout something that retarded onto my internet.

    These tubes belong to me.

  25. @63 steve probably has a dynamic Ip so it would be a little bit tough to hack his system. and anyways steve probably thinks that his crappy firwall and Nortan will protect him. :D

  26. I have an idea, why not use a photoresistor and an led, coupled with a similar setup on a pc, to transfer data to a storage device on the badge. Of course, the transmiter and reviever would need to be very close and shielded from stray light to prevent interference. An optical link like that could operate pretty fast.

    Steve, please stop trying to derail every hack.

  27. I like the idea…. Maybe an “all in 1” badge incorpoating ideas from #6 and #8 that would be nice to have the infrared LEDS in there and you could tell at a glace who in the crowd has one using an infrared camera….maybe use that for registration control in the future?

  28. So i just finished my defcon badge hack. I replaced the blue LEDs with UV ones and expoxied the thing in a pour-able plastic cup, It now purifies about 4 oz of water per hour. I removed the chip, put in a voltage regulator and put two series 9v.

    steve, you retarded little freak twink, don’t your parents love you? certainly your grammar teacher didn’t (doesn’t).

    two show my gratitude to you steve, I invite you to perform your socket ninja abilities on my server.

    12.110.110.204

    Have at it, you pathetic little 12 year-old twirp.

    Also, you can try my ultra-secure firewall, it is locked down like a brick…

    nmap away:

    127.0.0.1:31337

Leave a Reply

Please be kind and respectful to help make the comments section excellent. (Comment Policy)

This site uses Akismet to reduce spam. Learn how your comment data is processed.