Aduino(아두이노) 시리얼 포트 하나 더 이용하기

#include<SoftwareSerial.h>
 
const int rxPin = 2;
const int txPin = 3;
 

SoftwareSerial mySerial(rxPin, txPin);


void setup() {
  // put your setup code here, to run once:

  mySerial.begin(9600);

}

void loop() {
  // put your main code here, to run repeatedly:

  mySerial.println("Hello World!");
  delay(1000);

}