1. 'Intriguing'. It's spelled 'intriguing'.

And I am intrigued...

Posted at 12:57PM on Feb 12th 2007 by Herr Nikolas

2. 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 1:05PM on Feb 12th 2007 by harryk

3. 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 2:08PM on Feb 12th 2007 by fake

4. i vote for the garage door opener

Posted at 3:11PM on Feb 12th 2007 by Eurisko

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

Posted at 3:29PM on Feb 12th 2007 by ryan

6. "(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 3:57PM on Feb 12th 2007 by blacksh33p

7. Very intriguing! Still don'f get the sense of all this cyber life!

Posted at 4:07PM on Feb 12th 2007 by Nina

8. 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 5:35PM on Feb 12th 2007 by steve

9. 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 6:13PM on Feb 12th 2007 by khanzerbero

10. 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 8:05PM on Feb 12th 2007 by Smart Tass

11. 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 10:44PM on Feb 12th 2007 by morcheeba

12. 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 11:40PM on Feb 12th 2007 by fake

13. 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 12:34AM on Feb 13th 2007 by Propeine

14. 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 9:21AM on Feb 13th 2007 by khanzerbero

15. my bad i was referring to number 8 "steve" sorry for the confusion and no disrespect

Posted at 10:20AM on Feb 13th 2007 by Propeine

16. 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 11:00AM on Feb 13th 2007 by dantronic

17. 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 11:14AM on Feb 13th 2007 by Terry

18. 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 11:49AM on Feb 13th 2007 by morcheeba

19. 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 2:26PM on Feb 15th 2007 by rapidroy

20. 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 3:28AM on Mar 5th 2007 by jimmythecow