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SIM300 evaluation board - serial ports

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nat_jacker

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Hi all,

I bought a SIM300 evaluation board. There are three serial ports, 1) debug 2) main 3) RS232.

May I know, what is the difference between the main serial and rs232 serial?
 

Is that SIM300 evaluation board from simcom . I am also using a SIM300 evaluation board from simcom with only 2 serial port (main,debug). Can you please give a picture of that board.
 
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    kp029

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i one i had was with 2 ports main and debug but there was space for rs232 too
if u want to transfer AT commands serially then MAIN port is sufficient
 

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