For temp and humidity sensors I suggest using Maxim ICs' "1-wire" devices. Maxim makes temp sensors and other devices that connect using 1 wire (& ground!) These sensors are real popular in the hobbyist weather station market. They're also relatively cheap and can be hooked up in a daisy chain fashion using Cat5 (okay you can use Cat3, but who buys that anymore!) Maxim makes a couple of interface devices that use serial (RS-232) or USB to connect to your computer. Check out Tim Bitson's "Weather Toys" for more info.
I'm looking into building a home automation system, with surveillance
sensors and temperature control. I found Bruce Momjian's presentation that
has some interesting links: http://momjian.us/main/presentations/general.html#automationhttp://www.x10.com/
has a lot of different equipments:
* the AirSight Wireless IP cameras are rather cheap compared to the
competition. Does anyone on the list have experience with them ?
* The whole security systems at $150 is also super cheap compared to what
I've seen (usually around $1000 + monthly fee)
* They have transceivers and thermostat systems, but I'm not sure what
would work with Linux, and how.
* I couldn't find good sensors for temperature and humidity. Anyone has
good references for that?
I would like to control the cameras and thermostats from a linux box inside
the house, with open source software, and use the internet connection to
forward me alerts. The alarm system can be autonomous and bypass the linux
server. I am not particularly interested in controlling the coffee machine
and the lights. For now :)
Anyone has experience building such a system ?
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