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Arduino Burglar Alarm Sends SMS

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Re: Arduino Burglar Alarm Sends SMS

#21
post #15

So what's the total cost? - What's the cheapest Arduino board that would work with this sensor? Wouldn't it be cheaper to get a Raspberry Pi? - How much is the power supply? - It would also be cool if there was a way to send SMS over the regular wireless, like with one of those cheap emergency cell phone plans. That would make it a really nice alarm, no need for the internet, and it can work off a PSU even if burglar…

He shows it on a teensy, which if you're decent with a soldering iron can be done for as little as $16 + shipping. power supply is usb so no extra cost there. not sure how well talking to a phone would do directly but worth checking into.

That's right on the money, but technically I'm using a nano. Any Arduino will work though. There are knockoff Arduinos out there too, but I like to give back to the Arduino organization by buying an official board.

Re: Arduino Burglar Alarm Sends SMS

#22
post #15

So what's the total cost? - What's the cheapest Arduino board that would work with this sensor? Wouldn't it be cheaper to get a Raspberry Pi? - How much is the power supply? - It would also be cool if there was a way to send SMS over the regular wireless, like with one of those cheap emergency cell phone plans. That would make it a really nice alarm, no need for the internet, and it can work off a PSU even if burglar…

He shows it on a teensy, which if you're decent with a soldering iron can be done for as little as $16 + shipping. power supply is usb so no extra cost there. not sure how well talking to a phone would do directly but worth checking into.

$16 for the whole thing? The board, the sensor, the connectors, the power supply? I don't think it's even close to that.

Re: Arduino Burglar Alarm Sends SMS

#26
post #7

Earlier quoted context omitted.

Does anyone know of a cheap and simple SMS only GSM modem? All the ones I have used were expensive industrial spec units with complex data channels.

Huawei GTM900 Has serial port which takes AT commands. Easy enough to drive it. Costs $20 a shot.

oh god, thank you so so so so much for this.

Re: Arduino Burglar Alarm Sends SMS

#28
post #15

So what's the total cost? - What's the cheapest Arduino board that would work with this sensor? Wouldn't it be cheaper to get a Raspberry Pi? - How much is the power supply? - It would also be cool if there was a way to send SMS over the regular wireless, like with one of those cheap emergency cell phone plans. That would make it a really nice alarm, no need for the internet, and it can work off a PSU even if burglar…

1. You can get your hands on a Raspberry Pi?

2. Do you really want to try and optimize for cost on sub 30 dollar items in quantities of approximately 1?

3. ADH8066 GSM Modules are approximately fifty bucks. Serial port, AT commands, etc. Who knows where you can get a data carrier for reasonable cost in this country.

Re: Arduino Burglar Alarm Sends SMS

#29
post #7

Earlier quoted context omitted.

Does anyone know of a cheap and simple SMS only GSM modem? All the ones I have used were expensive industrial spec units with complex data channels.

Huawei GTM900 Has serial port which takes AT commands. Easy enough to drive it. Costs $20 a shot.

Have you tried one of these out? Where can you buy one?

Re: Arduino Burglar Alarm Sends SMS

#30

Anyone know a good source to get Arduino stuff (sensors, boards, etc.) in the USA?

Adafruit, Sparkfun, Pololu, Seeed Studios, Leaf Labs Also see Mouser, Digikey, Allied, et al http://leaflabs.com/distributors/ Radio Shack carries Arduino now, some do anyway. My personal favorite is Adafruit because this one time, I whined to her about her webform not accepting my name+spamtagger@emailaddress.com and she fixed it and wrote me back in like five minutes, no joke. I do not know her personally and that was the first time I had ordered anything from her.

tl;dr Limor Fried is a bad ass, buy things from her store.

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