Hello everyone. This is my first arduino project. I have tried all the ways but none of them work. I have even tried the code given in example for sending a sms using gsm module. The version of my module is M590. Mostcommon error is mySerial was not declared in this scope. Thank you for your help.

How to send sms

system August 15, 2016, 5:22pm 2

(deleted)

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