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Alarm System Telephone Dailer

Ever wanted control of your own Home Alarm System? Well… I’m working on it. This is the first big step. This circuit will call a pre programmed telephone from a land line to alert you that a sensor in your home has been broken. Great for going on holidays when you leave your percious home all by itself. … Home Alarm System Telephone Dialer PIC PIC16F84A Holtek 9200B DTMF Generator Programmer Sensor Jake Sutherland

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