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Topic: How to change baud rate mode of GSM900 (Read 2756 times) previous topic - next topic


Hi friends......actually im using arduino mega with sim900 module and by misktake i used the command AT+IPR=4800 and the baud rate changed to 4800 and now i need to change the mode to auto bauding once again but now im using the command AT+IPR=0 (0= autobauding) but it seems that the mode is not changed and when i send any command to the module i just receive junk it seems that bauding between SIM900 and arduino is not same. How to change the mode to autobauding once again please someone reply.



Beginners guide to using the Seeedstudio SIM900 GPRS/GSM Shield


It gives `~ junk what should i do to resolve this problem?

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