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8051 to control GSM modem

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Judgement

Tue May 13 2008, 03:39PM

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Hi guys, I'm a student doing a final year project. My project needs a 8051 microcontroller to program and run a GSM modem to send, read and receive SMS's but the thing is..I'm a total newbie to the 8051.

I need help in the programming part and we're probably going to use Keil C to program the 8051. The modem we're using is a Wavecom fastrack 10 supreme.

Another question: Is there any hardware that can receive SMS and power up devices? (eg. LEDs, buzzer..etc) Prefabaly a small and inexpensive one.

I hope to hear from you all soon as its kinda urgent. Thanks in advance.

[ Edited Tue May 13 2008, 03:40PM ]

shyam

Tue May 13 2008, 07:46PM

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search the site with your querry...

u will find ur answers for sure..

use the search tab at the top left1

lProgress is not made by early risers or hard workers, but by LAZY people, trying to find easier ways to do the same........

Judgement

Wed May 14 2008, 12:48AM

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Thanks for your advice but I've searched the forums and found nothing much on using 8051 to control a wavecom GSM modem.

shyam

Wed May 14 2008, 05:08AM

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u said u r using fasttrack supreme...

u shud have got urself a wavecom q24plus on the first hand.. there u wud have got an inbuilt ARM-7tdmi based controllers with IP support as wellas a few GPIOs to control.. as u said u needed, look if u can still get one.. nevertheless, wavecom supreme is pretty easy to interface..

get urself a working 8051 board and have it interfaced with PC (serially)..
now see if u can communicate ur 51board and PC properly..(write a small serial code).

u will have to try and write code @115200 baudrate.
else u will have to bring the baudrate of the modem down to say 9600.. will tell u how.. but before that,try what has been said above and let us know!

lProgress is not made by early risers or hard workers, but by LAZY people, trying to find easier ways to do the same........

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Judgement

Judgement

Wed May 14 2008, 09:22AM

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Thanks. I'll try that. If I still have any problems, I'll post again.

Judgement

Tue May 20 2008, 01:04AM

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Is there a tutorial or website that teaches you how to send AT commands with C?

Or if any of you here can teach me some basics?

Thanks.

Ajay

Tue May 20 2008, 06:58PM

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all you need to do is.. configure your uart.
create a function to send string.

then send command like this

CODE:

send("AT\r"); //send is your function to send string

//at command sent.

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Judgement

Judgement

Tue May 20 2008, 10:19PM

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Thanks dude. That was what I was looking for.

Ajay

Wed May 21 2008, 10:49PM

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do not forget to disable echo, coz that can create problem for you.

ATE0 - disable echo

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Judgement

Thu May 29 2008, 09:25PM

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Ok, I'm able to send AT commands to the modem but how do I read values from it?

+CMGR : "REC UNREAD", "+6512345678", "08/05/27"

How do I read the number, +6512345678, and send a reply or something similar in C language?

Thanks.

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8051 Microcontroller Projects AVR PIC Microcontroller Projects Tutorials Ebooks Libraries, interfacing tutorials, lcd tutorial, stepper motor, dc motor 8051 assembly language programming electronics and communication ECE CSE pdf ebooks library BE final year project ideas Embedded systems

8051 Microcontroller Projects 8051 AVR tutorials PIC microcontroller, 8051 assembly language programming electronics and communication ECE CSE pdf ebooks library BE final year project ideas Embedded systems