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Alarm system / Dialer


Duke

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our house alarm has a similar feature, if the power is off for more than 60 mins and/or the alarm has been set off it dials the cellphone and leave a pip code. We had the bios on it adjusted to inform us about the power as it has been known for thieves to cut the power and let the alarm run out of battery power. If you are going to be in that situation such as going away you need to leave the number of a willing club member with the person looking after your place - just in case.

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Well the 222-02 can only take in Digital inputs (open/closed signals relays, switches, etc) the 300 series can read analogue (temperatures) and digital (open/closed signals relays, switches, etc) so again you'd have a relay thats powered by the power supply that feeds your tank and if the power is removed the relay contacts will change stat allowing the EDAC dialler to dial an alarm, the EDAC units can run on 12-28vdc so a 12vdc power pack and 12vdc battery would run the device for when power is out allowing it to dial the alarm.

The 300 series units can control heaters and fans/chillers to control you tank temperature to if you wanted.

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Got some "techie" help.

Silicon Chip magazine had a project using a cell phone to autodial on command. It wouldb't be difficult to arrange a PIC (or PIC-Axe) microcontroller to drive a modem. They handle temperature sensors pretty well, too. It's trivial to detect power off ... a transformer and diode, which could be part of the charger for the battery which would run the unit when its needed.

I asked what issue of the magazine its in.

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Yip the pic or picaxe chips can deffently be programed to do almost anything you want the picaxe chips are soooooo easy to program to and with their flow chat programmer allow you to teat it before down loading to the chip theres a couple of good sites on these chips heres one i use.

http://www.rev-ed.co.uk/picaxe/

sorry i dont know what edition of SC it was.

Robert

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Sweet man just been into EDAC this avo and they are releasing within the next month or two two more diallers EDAC 310 & 320, both can do SMS and/or e-mail and the 320 will do data logging with removeable SD cards how sweet is that man they were talking prices not much more then the 300 modems mentioned above.

i also downloaded their software for the EDAC 300 and checked it out looks great really easy to configure heres a link to the download if you wanna check it out.

http://www.edacelectronics.com/Edac_website/Downloads/SMS300%20Configuration%20Manager%20v2%20-%20EDAC.exe

have a play.

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How much do these pic axe things cost rougly? Are they available in nz or imported?

Edit: on their price list nothing is over 85pounds - most are half that, so it looks pretty cheap. :D (I didnt know what I was looking for)

It would be a cool thing to have, "I have to go, my tank needs me"

tennents_superman.jpg

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Available in NZ most eletronic stores carry them try Jcar electronics, or if Chch south island components dick smiths have PIC chips but not sure if they have PICAXE.

You use to beable to by the starter packs which gave you everything needed to start pretty cheap the chips alone are anywhere from $5-30 thats just the programmable chip.

I haven't got the time to sit down and design a circuit nor find the dialling string comands easy for me to by a dialler already make and i know will work.

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That depends on how much you buy, i see the site is now charging 18pnd when i was buying it was only 2pnd which made it a lot cheaper then South Island Components but now unless your going to buy heaps SI components are the best deal.

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