SIM340DZ Help needed

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ROB2222

Joined: 12 Jan 2009
Posts: 1

12 Jan 2009 12:29 sim340dz

Hello

I am finding the 1st hurdle difficult to jump with the SIM340 GPRS Module. I have the Evaluation board and I am trying a small exercise to send an SMS message but its failing every time.

Looking at Hyperterminal...I do the following

CALL READY

AT+CSCA?
+CSCA: "+44447785016005", 145 // UK Vodafone SIM card with call centre number stored on SIM

AT+CMGF=1
OK
AT+CSCS="GSM"
OK
AT+CMGS="<MY CELL PHONE NUMBER>"
> HELLO THIS IS A TEST [CTRL-Z]
+CMS ERROR: 515

I get this Error 515 every time, which is PS Busy, which is the SIM card isnt ready, but it is, cause I got CALL READY and I checked with AT+CSCA? before starting the SMS message.

Any help appreciated to solve my stumbling block?

Rob

Added after 1 hours 11 minutes:

I have solved the issue.

The SIM card was set up for GPRS data only, and no SMS capability, which resulted in the error message.