Comments on: Keyless entry for your apartment http://hackaday.com/2007/05/12/keyless-entry-for-your-apartment/ Fresh hacks every day Tue, 24 Nov 2009 13:36:52 +0000 http://wordpress.com/ hourly 1 By: sudo http://hackaday.com/2007/05/12/keyless-entry-for-your-apartment/comment-page-1/#comment-26318 sudo Mon, 25 Jun 2007 19:24:12 +0000 http://hackaday.iheartcashews.com:8181/2007/05/12/keyless-entry-for-your-apartment/#comment-26318 This is a very simple solution, although it seems to provide no real security. I would advise looking into a remote control encoder/decoder with strong encryption.<br><a href="http://www.linxtechnologies.com/Products/Integrated-Circuits/HS-Series-High-Security-Encrypted-Remote-Control-Encoder-and-Decoder/" rel="nofollow">http://www.linxtechnologies.com/Products/Integrated-Circuits/HS-Series-High-Security-Encrypted-Remote-Control-Encoder-and-Decoder/</a><br><a href="http://www.digikey.com/scripts/DkSearch/dksus.dll?Criteria?Ref=169376&Site=US&Cat=34735062" rel="nofollow">http://www.digikey.com/scripts/DkSearch/dksus.dll?Criteria?Ref=169376&Site=US&Cat=34735062</a> This is a very simple solution, although it seems to provide no real security. I would advise looking into a remote control encoder/decoder with strong encryption.
http://www.linxtechnologies.com/Products/Integrated-Circuits/HS-Series-High-Security-Encrypted-Remote-Control-Encoder-and-Decoder/
http://www.digikey.com/scripts/DkSearch/dksus.dll?Criteria?Ref=169376&Site=US&Cat=34735062

]]> By: ErikH http://hackaday.com/2007/05/12/keyless-entry-for-your-apartment/comment-page-1/#comment-26317 ErikH Tue, 29 May 2007 20:22:46 +0000 http://hackaday.iheartcashews.com:8181/2007/05/12/keyless-entry-for-your-apartment/#comment-26317 Build something similar, but upgraded it to a system that responds to a specific tune (morse) played on the doorbell =) It uses an AVR and some relays, powered by the doorbell and is housed inside the intercom. A short pulse activates it, while normal use of the doorbell is still posible. Dipswitches give me the option to use any 8 pulse code (choose between long or short). If the code is correct, the door opens for 5 seconds, when wrong, nothing happens. Very conveniant if you forget your keys or they are 'somewhere' in your backpack. Build something similar, but upgraded it to a system that responds to a specific tune (morse) played on the doorbell =) It uses an AVR and some relays, powered by the doorbell and is housed inside the intercom. A short pulse activates it, while normal use of the doorbell is still posible. Dipswitches give me the option to use any 8 pulse code (choose between long or short). If the code is correct, the door opens for 5 seconds, when wrong, nothing happens. Very conveniant if you forget your keys or they are ’somewhere’ in your backpack.

]]> By: darkness http://hackaday.com/2007/05/12/keyless-entry-for-your-apartment/comment-page-1/#comment-26316 darkness Fri, 25 May 2007 00:54:59 +0000 http://hackaday.iheartcashews.com:8181/2007/05/12/keyless-entry-for-your-apartment/#comment-26316 If the phone has forwarding, you can just link it to your cell phone and buzz yourself in. No wiring required. If the phone has forwarding, you can just link it to your cell phone and buzz yourself in. No wiring required.

]]> By: Michael I. http://hackaday.com/2007/05/12/keyless-entry-for-your-apartment/comment-page-1/#comment-26315 Michael I. Thu, 24 May 2007 21:15:04 +0000 http://hackaday.iheartcashews.com:8181/2007/05/12/keyless-entry-for-your-apartment/#comment-26315 I think this keyless entry is pretty sweet, but keep in mind someone else might have alterior motives when making one, so you still might be better off with old fashioned security, or at least have a gun in your place just in case. I think this keyless entry is pretty sweet, but keep in mind someone else might have alterior motives when making one, so you still might be better off with old fashioned security, or at least have a gun in your place just in case.

]]> By: kWeb http://hackaday.com/2007/05/12/keyless-entry-for-your-apartment/comment-page-1/#comment-26314 kWeb Sun, 20 May 2007 23:07:45 +0000 http://hackaday.iheartcashews.com:8181/2007/05/12/keyless-entry-for-your-apartment/#comment-26314 I like this post, because it's not so utopian ;) I like this post, because it’s not so utopian ;)

]]> By: behzad http://hackaday.com/2007/05/12/keyless-entry-for-your-apartment/comment-page-1/#comment-26313 behzad Sat, 19 May 2007 10:46:19 +0000 http://hackaday.iheartcashews.com:8181/2007/05/12/keyless-entry-for-your-apartment/#comment-26313 hello frind hello frind

]]> By: neorazz http://hackaday.com/2007/05/12/keyless-entry-for-your-apartment/comment-page-1/#comment-26312 neorazz Tue, 15 May 2007 00:21:48 +0000 http://hackaday.iheartcashews.com:8181/2007/05/12/keyless-entry-for-your-apartment/#comment-26312 you can do the same thing with any solenoid controled lock and a car alarm with a good encrypted remote see the rfid door lock on hackaday and take out the rfid and replace with car alarm + remote you can do the same thing with any solenoid controled lock and a car alarm with a good encrypted remote see the rfid door lock on hackaday and take out the rfid and replace with car alarm + remote

]]> By: Scott http://hackaday.com/2007/05/12/keyless-entry-for-your-apartment/comment-page-1/#comment-26311 Scott Mon, 14 May 2007 16:29:22 +0000 http://hackaday.iheartcashews.com:8181/2007/05/12/keyless-entry-for-your-apartment/#comment-26311 I made something similar 20 years ago out of a VIC-20 and a couple relays. I hooked it up to the intercom so that when you pushed a specific pattery on the button downstairs (i.e. short, long, long, short) it would automatically buzz you in. No remote needed! I made something similar 20 years ago out of a VIC-20 and a couple relays. I hooked it up to the intercom so that when you pushed a specific pattery on the button downstairs (i.e. short, long, long, short) it would automatically buzz you in. No remote needed!

]]> By: Shadyman http://hackaday.com/2007/05/12/keyless-entry-for-your-apartment/comment-page-1/#comment-26310 Shadyman Mon, 14 May 2007 09:13:54 +0000 http://hackaday.iheartcashews.com:8181/2007/05/12/keyless-entry-for-your-apartment/#comment-26310 @peterj:<br><br>You could always time something with a PIC and have a morse-code like pattern as a code. @peterj:

You could always time something with a PIC and have a morse-code like pattern as a code.

]]> By: Aldeeb http://hackaday.com/2007/05/12/keyless-entry-for-your-apartment/comment-page-1/#comment-26309 Aldeeb Mon, 14 May 2007 06:49:20 +0000 http://hackaday.iheartcashews.com:8181/2007/05/12/keyless-entry-for-your-apartment/#comment-26309 Now why did I not think of posting my version for the past 2 years !!<br>Yup it's convenient Now why did I not think of posting my version for the past 2 years !!
Yup it’s convenient

]]> By: destroyer of evil http://hackaday.com/2007/05/12/keyless-entry-for-your-apartment/comment-page-1/#comment-26308 destroyer of evil Sun, 13 May 2007 16:52:50 +0000 http://hackaday.iheartcashews.com:8181/2007/05/12/keyless-entry-for-your-apartment/#comment-26308 Smarthome has a secure relay. been using it to buzz my door open for over a year.<br><br><a href="http://www.smarthome.com/7446wa.html" rel="nofollow">http://www.smarthome.com/7446wa.html</a> Smarthome has a secure relay. been using it to buzz my door open for over a year.

http://www.smarthome.com/7446wa.html

]]> By: Apothus http://hackaday.com/2007/05/12/keyless-entry-for-your-apartment/comment-page-1/#comment-26307 Apothus Sun, 13 May 2007 14:39:10 +0000 http://hackaday.iheartcashews.com:8181/2007/05/12/keyless-entry-for-your-apartment/#comment-26307 fantastic, a nice simple hack is always appreciated. Its good to mention a few ideas like these as they are often things people just gloss over fantastic, a nice simple hack is always appreciated. Its good to mention a few ideas like these as they are often things people just gloss over

]]> By: PeterJ http://hackaday.com/2007/05/12/keyless-entry-for-your-apartment/comment-page-1/#comment-26306 PeterJ Sun, 13 May 2007 13:51:47 +0000 http://hackaday.iheartcashews.com:8181/2007/05/12/keyless-entry-for-your-apartment/#comment-26306 In my old apartment i wired up a relay to the buzzer.<br>when the buzzer went off the relay closed the circuit to the door release.<br><br>Secure? No.<br>Convenient? Yes.<br><br>No more standing in the rain or snow trying to get the keys out.<br><br>The board had over 50 buttons on it so the odds that someone would notice it was pretty low.<br><br>As far as i know its still installed. :) In my old apartment i wired up a relay to the buzzer.
when the buzzer went off the relay closed the circuit to the door release.

Secure? No.
Convenient? Yes.

No more standing in the rain or snow trying to get the keys out.

The board had over 50 buttons on it so the odds that someone would notice it was pretty low.

As far as i know its still installed. :)

]]> By: xurious http://hackaday.com/2007/05/12/keyless-entry-for-your-apartment/comment-page-1/#comment-26305 xurious Sun, 13 May 2007 09:16:43 +0000 http://hackaday.iheartcashews.com:8181/2007/05/12/keyless-entry-for-your-apartment/#comment-26305 heh, i think i need to mod my doors with this. wOOt first post. heh, i think i need to mod my doors with this. wOOt first post.

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