5학년 1반

#include

SoftwareSerial mySerial(4, 5); // RX, TX

void setup() {

  // Open serial communications and wait for port to open:

  Serial.begin(9600);

  while (!Serial) {

    ; // wait for serial port to connect. Needed for native USB port only

  }

  

  Serial.println("Goodnight moon!");

  // set the data rate for the SoftwareSerial port

  mySerial.begin(115200);

  mySerial.println("Hello, world?");

}

char data;

void loop() { // run over and over

  if (mySerial.available()) {

    data = mySerial.read();

    Serial.write(data);

    if (data == '1') {

      Serial.write("ok");

    }

  }

  /*  

    if (Serial.available()) {

      mySerial.write(Serial.read());

    }

  */

}