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How to Interface SIM300 with MSP-EXP430F5529 Experimenter Board ?

Other Parts Discussed in Thread: MSP430F5529

Hello Sir,

     I am doing Project a in which i need to send data to Mobile no through SMS for that i want to interface Ti's MSP-EXP430F5529 Experimenter Board with SIM300 GSM module. My experimental board has USB cable interface. I've been checked about available SIM300 modules in market, I have found out following things from modules -

    I am been trying to find out how can i interface SIM300 module with my project board. 2 ways i can see here onwards ......

1) RS232 (SIM300) --->to---> USB Converter ---->to----> MSP430F5529 Board

2) RS 232 (SIM300) --->to---> RS232 to Serial TTL Converter --->to---> SPI bus --->to---> MSP430F5529 Board

     I want to know that which way out of this it will be convenient to me to implement Connectivity ? And also which way it will be easier to me with respect to do CODING in embedded ?? Also please note that for 1st option Driver should be installed at PC so that Serial interface can communicate with PC. I guess Driver should be installed at board side (Otherwise How come Board will identify that the SERIAL to USB Converter is connected to it !! 

Thank You,

With Regards,

Sunil N Supekar.

  • Hi Sunil,

         The usual communication to SIM300 is through UART interface. The MSP-EXP430F5529 Experimenter Board has UART pins at header J12(check the board datasheet). It is more conventional to interface the SIM300 to the UART pins of your experimenter board using an RS232 transceiver, rather than your option 1 and 2. 

    - Kel

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