Inspired by the knock to open hack, [ashish] put together a fairly simple DTMF decoder to control solenoid door unlocker and connected it to a Nokia 1100 cell phone. Call the phone, input the magic code, and the door unlocks.
Cell phone controlled door lock
Inspired by the knock to open hack, [ashish] put together a fairly simple DTMF decoder to control solenoid door unlocker and connected it to a Nokia 1100 cell phone. Call the phone, input the magic code, and the door unlocks.
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Reader Comments
(Page 2)22. IED makers all over the world love you.
Posted at 11:35AM on Jul 20th 2007 by lloyd
23. Hey everybody...
a friend of mine recently bought for a few euro (i think he bought 10 if this for 60 euro) a gsm unit (not properly a cell phone), that is old model from Ericsson and it has external connector for power,antenna,audio and serial!!! it's cool, easy to implement something with it, since sim cards are so cheap, u could just use it to controll the door or heating or whatever...
Posted at 1:10PM on Jul 20th 2007 by map
24. Great project! Especially for every roadside bomber wannabe
Posted at 1:54AM on Jul 21st 2007 by Mike Clayton
25. Why not use a simple phototransistor that starts conducting when the backlight goes on. Then you don't need a DTMF decoder!
Posted at 1:40PM on Jul 21st 2007 by Jasper
26. The idea is good, but security is low. Someone can record your DTMF tone and open the door.
Posted at 12:39PM on Jul 31st 2007 by Long Nguyen
27. wow this the gretest thing in the whole world.......zapppppp...
Posted at 10:38AM on Aug 7th 2007 by AnanD
28. This sort of thing has been used by ham radio operators for remote control of radio systems for about 40 years. Before cell phones they used hand held radios and a device called a tone decoder for autopatch (remote control of telephones).
Posted at 12:58PM on Sep 30th 2007 by Chuck
21. Just check out Homeseer.com #5 and #12. It allows me to send a text message (or use DTMF tones or speak a command) to open my front door. I can also just walk up to the door and it recognizes my bluetooth signature and opens the door when I depress the doorbell button (which doesn't ring inside in that instance).
Posted at 12:27PM on Jul 19th 2007 by Seth