This video will show you how to construct an automated GSM automobile dialler triggered by a vehicle/ home security/ smoke alarm.
There is No Programming needed and needs only some easy adjustments to a cellphone and some soldering.
Great for when you are away on vacation etc. when the alarm is triggered, the phone will call any number you set and let you understand that your home/ vehicle alarm has actually been triggered.
A GSM car dialler may reduce the expense of your home/ cars and truck insurance.
* An easy 555 monostable circuit might be needed to produce a brief pulse from alarm panels that put out a continuous high signal *.