I am using the Geeetech GPRS shield version 1 with SIM900 module. On the Geeetech wiki, it states that the GSM baud rate for the SIM900 is 19200. I am unsure if this is accurate. What is the baud rate and why is it necessary? How can you find the baud rate of the SIM900? What is the baud rate of this specific device? Any help is greatly appreciated! Thanks in advance!!!

I am unsure if this is accurate.

Why not start with the assumption that it is correct?

What is the baud rate and why is it necessary?

Has google failed you?

How can you find the baud rate of the SIM900?

You could perhaps check the Geeetech wiki. Or not.

What is the baud rate of this specific device?

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