LPC2148 – GSM Interfacing

Hi Guys today we will see GSM Interfacing with LPC2148.

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Components Required

  • GSM SIM900A module
  • LPC2148 Development Board

GSM Interfacing with LPC2148

Connection

Micro controller’s RX (P0.1) is connected into GSM module’s TX and Micro controller’s TX(P0.0) is Connected into GSM module’s RX pin.

Code

SMS Sending Code

This code is used to send the message to the particular number.

Calling Code

This code is used to Call to the particular number.

That’s guys… You can use this code for send a message and call to particular number. If you have any doubt please comment below.

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ganga
ganga
January 25, 2018 1:16 AM

can u explain this line tx(0x0d) in the prgm.

Ganga
Ganga
January 27, 2018 12:03 AM

Tq so much. I found ur code very helpful. But I am getting error as argument of type “long long” is incompatible with parameter of type “unsigned char*” at line 18 sms(NUMBER, “Welcome to electronics”). Can u explain this too. I need more help about gsm. Can u help me that too. My mail I’d is [email protected]

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