Arduino and GPRS shield

Made first prototype used GPRS shield SIM900

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

500px-GPRS_shield_v1.4

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

First I had to disable SIM pin1

Screenshot 2015-06-25 20.13.10

 

List of operators

Screenshot 2015-06-25 23.08.48

 

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

2015-06-24 20.37.57

 

2015-06-26 21.12.10

 

Now we have dial pad prototype.

2015-06-28 20.19.51