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Author Topic: saving and indexing messages on SIM900  (Read 122 times)
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Hello,
I use a MEGA and  a GPRS SIM900 shield to communicate with a smartphone  by SMS
I'd like to save some parameters  and warnings messages on the shield,
the SIM900 shield also had a battery, in the ways I can keep and use the time, instead of buy  RTC shield
On the same idea, why not use the free memory on the SIM900 shield  ?
I wish  save  it on the "ME" part and not the "SM" part (sim card), because size of ME is greater than the SIM card and also the SIM can  change if its one other users (but messages remains the same).

I use the command AT + CPMS, then AT + CMGW,
At the moment I can only save one message this way
But I want save several messages without phone number
So I want save and index messages only
I want to give an index to read it

How to do ?

Thank's  for advice and help.
Henri

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