Hi to all, currently i have arduino uno with gsm shield working perfectly. I integrated a button (using pin 6 for buttonpin) and when the button is pressed (HIGH) i am making a voice call. The skech #include <GSM.h> #define PINNUMBER "" // initialize the library instance GSM gsmAccess; // inclu…

Adding 1602 display to Gsm SHield+Arduino Uno rev3

system January 2, 2014, 7:54am 2

You cannot use pin 3. Pin 3 is used by GSM shield to receive information from Arduino board.

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