Go Down

Topic: Wireless window sensor (Read 2593 times) previous topic - next topic

Scott Baker

I want to wire up an alarm sensor on my window so my arduino will know when it's opened. I can't run wire to the sensor so it needs to be wireless. I know you can get DIY wireless window kits that run on batteries and last years before you have to change the battery.

How would I do that with an arduino? All I need to know is "is the alarm sensor tripped" so I think an XBee is way overkill. How can I do something like this in the most battery efficient way possible?

Scott Baker

Something like one of these...

http://www.smarthome.com/59482/GE-45131-Choice-Alert-Window-Door-Sensor/p.aspx

I'm mainly worried about battery life.

Scott Baker

I was wondering if you'd need a microcontroller at the window end to control the wireless.

Those items from goldmine would be PERFECT. I wonder what it would take to get an arduino to receive a signal from them.

mrmeval

You can do that with a simple magnetic reed relay a wall wart and something to make sound.
http://www.amazon.com/Universal-Buzzeralarm-Buzzer-Hazard-Warning/dp/B002IVAJMS
If it was designed by man it can be repaired by man.

zoomkat

You may want to look at hacking a cheap wireless doorbell like below. Walmart use to have them for ~$10. Has both transmitter and receiver included.

http://www.google.com/products/catalog?hl=en&num=100&safe=images&q=wireless+doorbell&cid=681528437267262088&ei=ASNSTJSSNIG0xQWDhsHHBA&sa=title&ved=0CEUQ8wIwBzgA#p
Google forum search: Use Google Advanced Search and use Http://forum.arduino.cc/index in the "site or domain:" box.

Scott Baker

Zoomkat I love that idea! Genius!

Go Up
 


Please enter a valid email to subscribe

Confirm your email address

We need to confirm your email address.
To complete the subscription, please click the link in the email we just sent you.

Thank you for subscribing!

Arduino
via Egeo 16
Torino, 10131
Italy