Need Guidance for Home Security System

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aameer

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hi,
i want to make a security system which may have following features

if door opens then a call is to made the stored number and when he receive the call a pre recorded voice message should play indicating that his door is opened.

I am planning to choose PIC16F877a, APR9600, Sim300.

Simulator: micro C.

Shall i Proceed with these with 4Mhz crystal.

So guys please suggest me shall i continue with these components i choose or guide me which suits best.

Aameer
 

You can either use 4MHz crystal or the uC you say has an internal oscillator ..
 

thanks for your feedback
i am facing problem in AT Commands.
when i dial a number the sim300 is not giving me feedback whether the person is engaged or didn't pick the call or answer the call.
What are the commands to check the status of the called made to the person
 

hello jeevan
i already did that.if i send AT then i am getting OK. so i asked about the above question.
 

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