Motion detector triggered sms station siren

Projects General Guidance
1

Dear friends,

I am new here, although I read some posts in the past. I've been interested in Arduino for a while now, but I never had a project interesting enough to sink my teeth in. Now I have something I need to build, but unfortunately it is too urgent that I fear I lack the skill to pull it off.

In a warehouse I have installed camera's over internet. But I can't look at the images 24/7. So I need to build a warning system that sends me an sms when something happens, so that I can watch the images. If some robber is in the warehouse, I'd like to be able to send an sms to trigger a loud horn to scare away the intruder.

The real problem is that I need solid material since the sensor and horn need to be humid-resistant. I fear that the small components available are not resitant enough for the conditions I need to set them up in.

Another problem is that I am not good with soldering components. Really, the kind of collateral damage I cause with a soldering iron is the envy of some smaller warfaring nations. I am really that clumsy.

So I was thinking of ordering an Arduino R3 and a GSM SMS module.
probably this one:
http://www.sainsmart.com/siemens-tc35-sms-gsm-module-voice-adapter.html

However, I need to find a weatherproof motion detector that I can connect directly to the Uno or to an I/O shield without having to solder extra elements like resitors to it. The same goes for the output to the horn. I was thinking of buying a piezo element, but I found that some need an external power supply and others need a 220V input.

This shield packs 4 relays that can connect 220V outputs, but I'm not sure how to work with it.

Here's a type of piezo siren I found, but I don't know how to connect the correct voltage/current to it.
http://www.hotsween.com/0hotsw/allsiren/dallld824.htm

And here's a tut about reverse engineering a motion detector:

Unfortunately I'm afraid it is a little too complicated for me, and I'd ideally need this project built and installed in about two weeks from now.

I know it's a lot to ask, but if anyone has a suggestion to even only a part of my project, or idea's for readily available components, I'd be really glad to hear about it. Just pointing me to a clear related tutorial would already help a lot.

I thank you a lot in advance, and wish you all the best,

F.

2

What distance of motion detect are you looking at, short range detect is easy to find I have a nice watertight IR device I bought through EBAY for under $3. But it is very short range 80cm. Though it interfaces nicely to trigger a digital pin.

Small Arduino list Ultra-sonic detectors achieve more distance but still have limits in distance 480cm.

Microwave detectors can work much longer range but cost more overall though I have seen a few build it yourself projects that are not to expensive.

How about hitting the Home Depot and looking at the IR detectors sold for turning on your yard light. Maybe one can be opened up and you can figure out a way to change operation to DC versus the 115 volt AC they work on.
O option to add a small inverter to your project to produce the 115v for operation.
I have several of these in my home wiring parts box, maybe I will tear on apart.
Most have a 30ft range.

Your camera over internet doesn't have a motion alarm trigger output?

Also another possible idea is the arduino eye shield
http://www.davidchatting.com/arduinoeyeshield/
One should be able to use this input for rapid fluctuations in the signal to detect a person moving into the video frame.

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Check the projects page on this sight for more on the video shield.

4

I have torn apart a Cooper Lighting Model MS180W riantight motion detector.
It runs on 115AC which inside is dropped via two resistors a couple diodes and zeners to 24VDC and 5VDC.
I can eliminate the 115AC for 24VAC but need to make fianl test for 24VDC connection location to make work on DC only once done this will use 24VDC to run relay. I am hoping that since the chip and sensor seem to run on 5VDC that I can by replacing relay make it all 5VDC.

These motion detectors work well in outdoors environments, Have good detection ability and are easy to open and modify. Lastly easy to obtain.
They come water tight and mount on standard outdoor water tight electrical boxes threaded fittings.

As I find the DC final solution I will post modification points and parts.