[PIC] SIM908 Problem urgent solution needed!!!

Pulsetronics · Jan 12, 2015

Hey Guys, whenever I enter commands like AT, ATE0, AT+CMGF, it response well (OK) but whenever I enter commands like AT+CMGR , AT+CLIP and more the module returns ERROR, what is Happening?

ud23 · Jan 12, 2015

which type ERROR MSG did you get
+CME ERROR ?

Pulsetronics · Jan 12, 2015

Something like this on UART TERMINAL on PC

Code:

AT

OK

AT+CMGF = 1

OK

AT+CMGR=1

ERROR

ud23 · Jan 12, 2015

https://www.dfrobot.com/image/data/TEL0051/3.0/SIM908_AT Command Manual_V1.01.pdf

I think you need to read AT command format.If you want read msg try to know the message indexing AT+CMGL="ALL" <ENTER>
then AT+CMGR=2 <ENTER>

https://www.smssolutions.net/tutorials/gsm/receivesmsat/

you need use proper formatting and steps.

marthoma · Jan 13, 2015

first of all ensure your sim was properly inserted and was acknowleged by the modem.

secondly at+cmgr=1 is to read the first message that was received..if u havnt received any message than it will give an error....so to ensure send one message to that number and use this at command..it wont give an error

Pulsetronics · Jan 13, 2015

Marthoma, if there is no message the module is eXpected to reply Ok and not Error. ...can anyone tell me what ME functionality means in GSM module

[PIC] SIM908 Problem urgent solution needed!!!

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[PIC] SIM908 Problem urgent solution needed!!!

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