gsm interface to pic16f877a

silvanose · Joined: 28 Sep 2013 Posts: 3 Location: INDIA,kerala

How can I display sms on 16*2 lcd and how to make a call ? I am using gsm900 module and pic 16f877a.
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temtronic · Posted: Sun Sep 29, 2013 5:18 am

Start small...

first get the 877 to flash an LED at 1HZ rate...
... this will confirm your hardware is correct
next get the 877 to send 'hello world' to LCD module...
... confirms you've got that 'up and running'
next get a PC connected to the PIC...
... confirm you can send and receive from the PC
now connect the GSM to the PIC...
...

You need to do each step..building knowledge nd getting familiar with the PIC, C and 'how it all works'..

and

be sure to learn the 'search' feature on this forum. Ther's lots of threads about PIC and GSM here, but don't just copy and paste code,odds are real good it won't work first time!
That's why you need to take small steps.

hth
jay

ezflyr · Joined: 25 Oct 2010 Posts: 1019 Location: Tewksbury, MA

Hi,

Start by reading the forum archives as this exact project - I guess it's a common school assignment! - has been covered many, many times.....

It's not enough to tell you are using a 'SIM900', you've got to post a link to the actual hardware you are using. The basic SIM900 can be directly connected to the PIC, while the. (more common) breakout board mounted version usually has RS232 interface hardware..... We need to know what you've got!

Also, in the Code Library there is a working SMS "driver" by forum user Gabriel.....

John

SSR · Joined: 09 Nov 2011 Posts: 14

Gabriel has done most of the job for you.
http://www.ccsinfo.com/forum/viewtopic.php?t=50390&highlight=gsm

ezflyr · Joined: 25 Oct 2010 Posts: 1019 Location: Tewksbury, MA

Hi,

Didn't I already say that??

SSR · Joined: 09 Nov 2011 Posts: 14

Hello,

Surely, but i missed that. Don't worry it won't take much of forum space. Very Happy

silvanose · Joined: 28 Sep 2013 Posts: 3 Location: INDIA,kerala

Thanks for all. I tried this project and it works fine. Thanks Gabriel.
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Gabriel · Joined: 03 Aug 2009 Posts: 1067 Location: Panama

no problem...
thanks to the other guys that took the time to point you in the right direction. specially ezflyr who helped out with the driver.

[cartoon deleted]

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