elp needed making changes circuit


Posted on Feb 7, 2014

hi every one im not in the line to electronics so please can any one make a diagram for me that how i change this circuit so that it will dial a number using speed dial and also beeps a siren when triggerd and i also add some vibration sensors as siren triggers in it. bassicallly it is a simple laser siren when laser are not comming to photo cell i


elp needed making changes circuit
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t breaks circuit and siren beeps for the time period of interuption of laser but when laser again goes to photo cell siren stops i also want to change that in a way that if laser interupts for just a second siren will runs until not stop by a switch or manually. here is the circuit diagram i have




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