pinMode(RX_PIN, INPUT); // Probably, also, configured by SoftwareSerial library. pinMode(TX_PIN, OUTPUT); // Probably, also, configured by SoftwareSerial library.

pinMode(RX_PIN, INPUT); //Probably, also, configured by SoftwareSerial library. pinMode(TX_PIN, OUTPUT);//Probably, also, configured by SoftwareSerial library. void ...

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