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Interface SIM300 GSM Modem with PIC16F877A thro' MAX232 IC

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Compiler? hi-tech c? or asm?

You have to know the gsm commands to send /receive sms and also for gsm modem settings.

---------- Post added at 19:24 ---------- Previous post was at 19:23 ----------

you can use 15pf to 33pf cap for clock.
 
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Writing in C seems interesting, can MPLAB IDE compile C? I'm still in the process of learning AT commands by using minicom on Linux. Btw, is there anyway to notify the PIC that there's a recent message to be read? Or you need to create a procedure to check the memory in every certain period?
 

Writing in C seems interesting, can MPLAB IDE compile C?
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Hi-Tech C comes along with MPLAB. You can use that. Or you can download Hi-Tech C separately and use on MPLAB IDE.
is there anyway to notify the PIC that there's a recent message to be read? Or you need to create a procedure to check the memory in every certain period?
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Whenever you receive the sms message, you will be notified and can read immediately or can store it in PIC for later read. It is up to you.
 
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