home project (garage door open detector)

Mook Johnson · 2006-08-20T19:46:34+00:00

My garage door is constantly being left open but various unnamed members of the family. I'd like to design a wireless device that detects the door being open and lights an LED in the kitchen if the door is open and turns it off if it is closed.The garage is detached and about 30' from the house and there is a brick veneer wall on the outside of the house. The kitchen is on the other side of that wall.I'm thinking I can tap the state of the limit "closed" limit switch on the garage door and turn on the transmitter if the switch is open, turning on the LED in the kitchen.The logic parts will be fairly easy it is transmitter and reciever and associatd antennas. that will be tricky.Anyone have any ideas for a project like this.

Aug 20, 2006 21 Replies

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Genome 19 years ago

Spend the $16 on a padlock and lock the garage door.

Job done.

DNA

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Rich Grise, Plainclothes Hippi 19 years ago

Well, one thing you could do is bury a cable alongside the footpath, but what'd be more fun is an in-or-out detector, which, using PIR or sonar, detects when someone is leaving the garage without having closed the door, and blares at about 90 dBa, 'CLOSE THE GARAGE DOOR!!!!" ;-)

Good Luck! Rich

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