Interfacing GSM Modem Microcontroller Send SMS AT Commands

Interfacing GSM Modem With Microcontroller By: Gaurav Arora

Building a Embeded system with ability to Send Sms using an GSM modem. Objective

WORK FLOW ,[object Object],[object Object],[object Object]

Defining Modules ,[object Object],[object Object],[object Object],[object Object]

GSM MODEM ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

Confiuring GSM Modem ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

Some Terms ,[object Object],[object Object],[object Object]

AT commands ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

Interfacing Modem with Microcontroller

Output of hyper-terminal for AT commands to modem

USART ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

Activating USART module(1) ,[object Object]

Activating USART module(2) ,[object Object],[object Object],[object Object]

Activating USART module(3) ,[object Object],[object Object]

USART initialization code ,[object Object],[object Object],[object Object],[object Object]

USART Transmission ,[object Object],[object Object],[object Object],[object Object]

Problem with Baud rates ,[object Object],[object Object],[object Object]

USART RECEPTION ,[object Object],[object Object]

Interrupt Detection ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

Have a look on code!! Any Questions??

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