That's the code where you are assigning a name to your Software Serial Port:
SoftwareSerial mySerial(2, 3);
You can change it to anything and use that later in your code & get your output on Arduino Serial Monitor.
That's the code where you are assigning a name to your Software Serial Port:
SoftwareSerial mySerial(2, 3);
You can change it to anything and use that later in your code & get your output on Arduino Serial Monitor.