Pokhraj:
Hello,One confusion. I have added arduino pin 9 to GSM RX and arduino pin 8 to GSM TX. And GND of arduino with GSM GND pin.
Is any anywhere I need to mention the pin numbers at my sketch?
Thanks-
Pokhraj
Yes. The software doesn't know where you have connected the GSM module, unless you tell it, or it tells you where to connect it.