‘Intriguing’. It’s spelled ‘intriguing’.

And I am intrigued…

Posted at 12:54 pm on Feb 12th, 2007 by Herr Nikolas

I like. Would work great for places with a large number of doors, like at a firestation. would also be cool if you could build a receiver that rotated through a set number of codes

Posted at 1:04 pm on Feb 12th, 2007 by harryk

Quote: “We’re not really hung”.
Takes a brave man to admit that, Will. Admitting you have a problem is the first step. Now publish your email address and you’ll get an inbox full of herbal remedies that will fix it :-)

Posted at 1:55 pm on Feb 12th, 2007 by Smart Tass

There used to be another, simpler version of that garage door opener online. Yep, here it is. Works, too.

http://www.ee.washington.edu/circuit_archive/circuits/garage.html

Though your entrant’s entry is definitely a step-up in terms of function (pressing twice & etc)

Posted at 2:05 pm on Feb 12th, 2007 by fake

jesus christ, shouldn’t you have to submit a coherent writeup to get nominated? i’m sorry, but that first write up is pathetic.

where in the writeup does he describe the “only proper way” to get RS-232 – ttl? now that would have been a great entry — a do-it-all level shifter, from 3-5v ttl/cmos to RS232 (with or without inversion) and back.

Posted at 2:10 pm on Feb 12th, 2007 by fake

i vote for the garage door opener

Posted at 3:02 pm on Feb 12th, 2007 by Eurisko

Why will the opener only do doors manufactured prior to 2003?

Posted at 3:27 pm on Feb 12th, 2007 by ryan

“(I’m hosting it on my personal server since he didn’t have one)”

Instead of hosting, I vote that you give that man a copy of wordpad.exe. Titles and maybe underlining a thing or two would do wonders for that project. :)

Posted at 3:54 pm on Feb 12th, 2007 by blacksh33p

Very intriguing! Still don’f get the sense of all this cyber life!

Posted at 4:06 pm on Feb 12th, 2007 by Nina

Until now projects are rather boring and useless. Who needs such an opener? Modern doors can’t be opened anyway and the idea is still existent on the web. And the ethernet thing.. well…
Wasn’t there a single entry that was really “cool”? That’s all lame bs, if I had known i’d submitted an entry myself. Probably a blinking LED would top all this stuff!

Posted at 5:22 pm on Feb 12th, 2007 by steve

you can check at my design entry i think its cool
its a wifi antenna. the logo is the antenna itself!

http://foro.colombiaunderground.org/index.php/topic,2236.0.html

Posted at 6:11 pm on Feb 12th, 2007 by khanzerbero

To post #2, I have another design that allows you to start at a certain point rather than at 0.

To post #3
I knew I saw this somewhere before, thanks for digging that up. I remember it from years ago but can honestly say this is from my own devise.

To post #6 the newer style garage door openers using rolling codes that change everytime the button is pushed, there are like 30 possible codes that can be used at any one time but its out of 128bits or something like that. Sure you could brute force it still but it would take days.

to post #9
Maybe you should have submitted something then instead of complaining about other people’s submissions. I never said mine was the first of its kind. While numerous hacks have little real world value, how many hacks actually do? Whens the last time you needed a webcam controlled airsoft gun?

Posted at 7:34 pm on Feb 12th, 2007 by Propeine

Eurisko – Older garage doors (2003 sounds like a good cutoff date) use a single 8-10 bit code. It’s ok security, but can all possible combinations can be cycled through quickly (like this entry).

To fix this, you might want to increase the number of bits so it would take longer to guess… but that doesn’t offer any security to people who can record the key over-the-air when you press the transmit button.

To combat that, rolling codes where developed. The code changes each use (so simple recording won’t work), and it’s hard to predict the next valid code (so that recording + a little processing won’t work). Here’s a good explanation: http://auto.howstuffworks.com/remote-entry2.htm

Also google keyloq for technical details.

Posted at 10:33 pm on Feb 12th, 2007 by morcheeba

I’ve built these garage door opener tumblers in the past. There are a couple additions I thought of but never made (laziness and liquor prevailed)…
* Some LED’s inline with the transistors will give a binary readout of the code. Obviously the tumbler will move past the valid code by the time the door starts to raise but it should be close enough to give an approximation of the code to use. If you put a spst button on there to stop the code from rotating you can read the value then work backwards.
* It’s hard to know how fast you can step through the codes while still knowing the door will open when you get the right one. A way around this – wire 4 universal remotes together. Hardwire the two most significant bits to each combination then slowly work through each step. It’ll try 4 combinations at once.

Posted at 11:50 pm on Feb 12th, 2007 by Terry

i actually submitted it!

http://www.hackaday.com/2007/01/02/dc-entries-lvp-logic-probe-and-a-wireless-antenna/

the antenna is usefull i connects to the wifi card and its an improvement over the builtin antenna in some cards.

and its actually first of its kind as you will never find anything like it. normally antenna shape is dictated by the function, in the submission function & artwork are blended to form my submission.

Posted at 9:19 am on Feb 13th, 2007 by khanzerbero

I can see the hangup, you’ve got one gadget (garage door wedge) that LOTS of people can understand ONE use for, and another gadget (mega something something) that ONE person finds LOTS of uses for… don’t get me wrong, if the jury comes ’round to MY workbench, I’d be hardpressed to describe an actual “use” of any of my creations… just sayin, to each his Leatherman.

But it is a dilemma that divides the soul of HAD: Dutiful Outfitter of Rare Knowledge -or- Welcoming Instigator of Faithful Involvment

Posted at 10:15 am on Feb 13th, 2007 by dantronic

my bad i was referring to number 8 “steve” sorry for the confusion and no disrespect

Posted at 10:17 am on Feb 13th, 2007 by Propeine

I forgot to mention… garage door openers are long-term investments; they only get upgraded when very broken. Go to an older neighborhood, and I’ll bet 50% aren’t using the rolling codes.

Posted at 11:06 am on Feb 13th, 2007 by morcheeba

Electronics beginner here:

What voltage controls this? It appears to be 16 VDC, but can’t quite tell in the schematics. Also, what are the values of C1 and C2?

Posted at 2:23 pm on Feb 15th, 2007 by rapidroy

where would i go to get this silk screened onto a PCB board for me? I would LOVE to build one, but dont have the skills to make one myself. I can solder everything, thats not the issue. its just the traces I cant do.

thnx in advance to anyone who can help!

Posted at 3:26 am on Mar 5th, 2007 by jimmythecow

Anyone know what LSP11 is for?

Posted at 1:13 am on Apr 3rd, 2007 by mb3k

Also, I checked out the BOM and found that the 555 timer, the 12-bit counter, and NAND have supply voltages of about 5V. The problem is that there isn’t any handy 5V batts around. I’m thiking of just addding a 1k resistor right after the +’ve terminal to reduce the voltage to 5V (assuming the current draw from the datasheets come out to ~4mA).

Can someone confirm the required voltage for the circuit?

Posted at 4:10 am on Apr 4th, 2007 by mb3k

http://www.youtube.com/watch?v=v9EQqKh2IKg
What kind of cracking software could i use to take this technique?

Posted at 1:10 am on Dec 28th, 2007 by LookitzrYAN

I was wondering how to use these programs submitted by the two people? I’ve also been looking for the source code for hacking the garage doors

Posted at 7:59 pm on May 20th, 2008 by johnny

One Question? Why?

Posted at 1:18 pm on Oct 23rd, 2008 by Garage Door Repair Man