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Building a Home Automation and Security System with Python

Issue 142

From Issue #142
February 2006

Jan 02, 2006  By Fred Stelter
 in
Grab some relatively inexpensive hardware and use Python to string it all together into a home security system.
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Breaking the loop

Anonymous's picture
Submitted by Anonymous on Sun, 06/06/2010 - 07:53.

If using for example a PIR motion sensor, the sensor can come on for a period as brief as half a second. So what I do is query the status of all input devices every 0.2 seconds not to miss it.

This works great, however to use any of the relays, I need to interrupt this loop, otherwise the serial device gets confused being sent conflicting commands at the same time, then restart the loop.

Are there any better ways to poll the serial device other than starting a separate process or thread, running a loop and adding a condition to the loop whenever you want to briefly stop it?

Me 2 make a Home automation

Binu's picture
Submitted by Binu (not verified) on Mon, 07/20/2009 - 02:58.

Me 2 make a Home automation system with python for mobiles, check out here
www.bluehome.info

self made security system

sugam's picture
Submitted by sugam (not verified) on Fri, 03/20/2009 - 02:20.

i want to make a security system myself. Can you send me any ideas of what can be made and what are the requirements and how to make it.

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