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How should I start my home automation/sensor network?

post #1 of 6
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[I'm not sure if this is the best section for this, but w/e]

I'm a 19 year old college student studying computer science and I want to get started with home automation and such. I have a crappy old HP Pavilion a545c with .5GB RAM and an Nvidia FX 5700 graphics card running Ubuntu Server 12.04. I have read about all sorts of home automation packages like X10 and Insteon, but I'm not sure what will be best for me. Hint: cheaper = better. What I want to do is be able to read a bunch of sensor data (temperature, water level, pH, light, blah blah) and also send some data (close the garage door, turn on the lights, turn on/off my other computers, etc.). I think I would prefer to use RF for most of these things. I also want to be able to program the server-end stuff myself, while also having some user-friendly set-up in the beginning. So how should I start? Will one of those start-up packages be what I need?

Thanks for your guys help!
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post #2 of 6
The prebuilt stuff, while durable and workable will be quiet expensive. I have used a couple X10 devices and have no complaints about them but I decided to leave prebuilt solutions and build out stuff myself. There are about a million ways to do it with just a basic knowledge of electronics. I use combinations of Arduinos, Netduinos, XBees, WiFlys shields, and whatever else to do my automation.

My systems monitor room temps, humidity, doors opening, motion sensing, room lights, and a few things in the kitchen. Most of it I can control from an internal website I built or with RF/IR remotes. Just hitting the website I can lock and unlock my front door, dim lights, (was able to change temps but moved recently), look at my oven and fryer temps, you name it you can probably do it. I programed a counter top burner with a moka pot on it and my toaster to turn on automatically for when I wake up.

I'd really recommend picking up an Arduino and playing with it a bit. If you are nervous about messing with mains voltages then grab a couple powerswitch tails and use those until you are comfortable with it. The initial cost of an Arduinos, XBees, and electronic components may seem high but you will have a much more versatile system with much more control.
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post #3 of 6
Thread Starter 
Thank you so much for your response! smile.gif I already have an Arduino R3 and it is a lot of fun! So what would I do with it? Would I hook it up to my server via USB and use an XBee shield to communicate with XBee transmitters? I really don't know anything about this stuff. Could you maybe point me towards a beginning tutorial?

edit: So I've looked Into XBee some more and it looks like you have to get two modules, hook one up to your computer through the USB adapter, and one to your Arduino through a shield.
Edited by Awk34 - 6/3/13 at 12:07pm
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post #4 of 6
Quote:
Originally Posted by Awk34 View Post

Thank you so much for your response! smile.gif I already have an Arduino R3 and it is a lot of fun! So what would I do with it? Would I hook it up to my server via USB and use an XBee shield to communicate with XBee transmitters? I really don't know anything about this stuff. Could you maybe point me towards a beginning tutorial?

edit: So I've looked Into XBee some more and it looks like you have to get two modules, hook one up to your computer through the USB adapter, and one to your Arduino through a shield.

Yea you need two or more XBees for it to work. You can use just the xbees to do simple things like open and close a relay or emulate a usb serial connection to a arduino wirelessly. I personally use a Connectport X2 that plugs directly into my network and it has a xbee radio in it.

Go to sparkfun and look at the primer on xbee. If you really want to get into the nuts and bolts of xbee get a book called Building Wireless Sensor Networks with Zigbee, XBee and Arduino. That will teach you everything you need to know about those and even provide some good projects to get you started on home automation.
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post #5 of 6
Thread Starter 
Quote:
Originally Posted by Kylepdalton View Post

Yea you need two or more XBees for it to work. You can use just the xbees to do simple things like open and close a relay or emulate a usb serial connection to a arduino wirelessly. I personally use a Connectport X2 that plugs directly into my network and it has a xbee radio in it.

Go to sparkfun and look at the primer on xbee. If you really want to get into the nuts and bolts of xbee get a book called Building Wireless Sensor Networks with Zigbee, XBee and Arduino. That will teach you everything you need to know about those and even provide some good projects to get you started on home automation.

Thanks again!!! I will definitely get that book. I have just ordered 2 XBee series 1s, a USB adapter, and an Arduino shield.
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post #6 of 6
No problem. If you run into any problems let me know. It takes a couple steps to get them set up. Once you get used to it though its really easy. If you haven't already grab a breadboard adapter for the xbees. They make prototyping much easier. Also try to keep from over volting them...they fry easily.
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