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???
08/15/06 08:18
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#122255 - Getting started
Responding to: ???'s previous message
Gaurav Gupta said:
after reading about ur project.

Please keep the SMS abbreviations - like "ur" - for the phone; when you're typing on a proper keyboard, please use proper words!
(unless, of course, you are actually entering your post using a mobile phone keypad, or have some other disability or restriction that warrants it...)

i wish interface a nokia mobile with 89s51 microcontroller ... please guode me abut how to start.

The first thing you need is to determine the interface to your phone - physical connector, signal levels, protocol, etc.

This information is, unfortunately, not often provided for consumer devices like phones - hence my suggestion that a proper GSM modem would be far better:
I said:
That's the trouble with using a Phone
I think you may well be far better off just getting a proper GSM module ("modem") that is specifically designed, documented, and supported for this use - see: http://www.8052.com/forum/read.phtml?id=101998


However, a lot of people have managed to use Nokia phones for this kind of thing, and have described their experiences on their web pages - so get searching with your favourite internet search engine!

Also search this site for previous discussions.

In particular, study the links I provided earlier:
http://www.8052.com/forum/read.phtml?id=122184

List of 27 messages in thread
TopicAuthorDate
GSM SMS control            01/01/70 00:00      
   In the sms request...            01/01/70 00:00      
      SMS in PDU format            01/01/70 00:00      
         i found this about pduspy            01/01/70 00:00      
         So why PDU?            01/01/70 00:00      
      Not such a good idea            01/01/70 00:00      
   The Originating Number *is* in the message            01/01/70 00:00      
      try first            01/01/70 00:00      
         That's the trouble with using a Phone            01/01/70 00:00      
         help me with the same            01/01/70 00:00      
            Getting started            01/01/70 00:00      
               gsm and 8051            01/01/70 00:00      
                  Nothing to add            01/01/70 00:00      
            Butting-in            01/01/70 00:00      
   All about PDU format            01/01/70 00:00      
   example data            01/01/70 00:00      
      Now you're just not trying!            01/01/70 00:00      
   do experiment            01/01/70 00:00      
      No experiment!            01/01/70 00:00      
         wet horses            01/01/70 00:00      
            silly horse!            01/01/70 00:00      
      SMS with AT89C51            01/01/70 00:00      
         Off-Topic, vague question            01/01/70 00:00      
            AT89C51 with GSM            01/01/70 00:00      
               Not here!            01/01/70 00:00      
   thank you            01/01/70 00:00      
   about the hardware            01/01/70 00:00      

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