[디바이스마트] USB to UART TTL 테스트 코드

3v_uart_test.ino

void setup() {
  Serial1.begin(9600);
}

void loop() {
  Serial1.println("Hello world");
  
  if(Serial1.available()){
    Serial1.print("Reply) ");

    while(Serial1.available()){
      Serial1.write(Serial1.read());
    }
    Serial1.println();
  }
  delay(1000);
}

5v_uart_test.ino

#include <SoftwareSerial.h>

SoftwareSerial mySerial(2,3);

void setup() {
  mySerial.begin(9600);
}

void loop() {
  mySerial.println("Hello world");

  if(mySerial.available()){
    mySerial.print("Reply) ");

    while(mySerial.available()){
      mySerial.write(mySerial.read());
    }
    mySerial.println();
  }
  
  delay(1000);
}