Hi I am very new to this and have been struggling for a while, I have scoured google and everything is far more complicated than I require. Basically I need Pin7 when High to dial a predefined number on the Sim900. I know the link works between the Arduino and Sim900 I have found an Instructable …

Sim900 andArduino Uno

Alarm_guy1 October 27, 2017, 4:16pm 3

Thankyou will take a look

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