web spider wrote:
> Well Jinx, this is quite welcoming, I must say. Let me just say what I'm up
> to.
> 
> I want to first understand how can interface a 12f629 to a mobile phone
> (hardware part is easy) download a sms message to the pic and then use it to
> trigger (for learning purposes) one output connected to say an LED.
> 
> Now I know there are a couple of whole projects out there with source code,
> etc, but none of them explain what I need to know(basics of this particular
> process).
> 
> This is the process:
> 
> 1.pic sends AT command to mobile phone.
> 2.pic presses enter.

"Enter" is just another command/character, nothing you "press".
So it's part of step "1." above.

> 3.mobile phone sends sms message in pdu format to pic.
> 4.pic recognises message certain bytes
> 5.pic switches on an output pin (to do anything)

Probably a bit easier using a PIC with an USART.
But maybe you need the small size of the 12F ?

> 
> If I am able to understand this then I will definitely try my best to build
> rest of the program and hardware.

Is it your first PIC program (that is, on any PIC) ?

Maybe the 12F683 would be better, more memory and better INTOSC.
The INTOSC in the 12F683 may be enought for serial comm (no
crystal, saves two pins).

Jan-Erik.


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