Do you need to have a computer connected to MKR NB 1500 24/7

Just wondering if you need to keep a computer connected to the Arduino (in my case MKR NB 1500) for it to send an SMS (compile then upload each time to then go to the serial monitor and enter Ph. Details), or can it send one when triggered by an event such as a gate opening? Thanks, Isaac

remove while (!Serial);


You do not need a computer connected to write a sms.

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