If you're inventing and pioneering, you have to be willing to be misunderstood for long periods of time

Arduino and GPRS shield

Posted on June 24, 2015 - June 28, 2015 by margusja

Made first prototype used GPRS shield SIM900

http://positrontech.in/uppdf/GSM/SIM900%20%20Module.pdf

http://garden.seeedstudio.com/images/a/a0/SIM900_ATC_V1_00.pdf

First I had to disable SIM pin1

List of operators

So I made one call and send one SMS to Varulla.

Now we have dial pad prototype.

Posted in Elektroonika

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