Hi ,
We Recently bought one olimex MOD-GSM module. I connected the MOD-GSM module to MOD-USB-RS232 through UEXT interface and i connected MOD-USB-RS232 to my PC and Opened the hyper terminal and trying to send SIM340D AT Commands in hyperteriminal, but nothing response is coming from GSM module. I am not understanding where is the problem. Moreover, whatever commands i am typing on hyperterminal is also not visible, but i checked the MOD-USB-RS23 its working fine. Is MOD-GSM module having default firmware or otherwise we want to program any firmware in to it ,through which interface it will get programmed and which compatible Debugger/programmer i want to use for programming this SIM340D. Please guide me how to uses this module properly.
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