Comment on Arduino Burglar Alarm Sends SMSparentComments−aimattOP14yYou can hack this module: http://finch.am/projects/arduinogsm/ $25OR you can buy this arduino shield: http://www.sparkfun.com/products/9607 $100
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You can hack this module: http://finch.am/projects/arduinogsm/ $25
OR you can buy this arduino shield: http://www.sparkfun.com/products/9607 $100