Page 575 - MDP2020-1

················································································ 명장양성프로젝트 【MDP】 과제발표회 자료집 Ⅰ | 569

digitalWrite(5, LOW); //LED OFF
}
else {
Serial.println("\t wrong data");

}

myString = ""; //myString 변수값 초기화
}

if (digitalRead(signal_pi)==HIGH && flag == 0)//라즈베리파이의 신호가 들어왔을때
{
tone(speakerPin,450);
mySerial.write("1");
flag = 1;

}
else if(digitalRead(signal_pi)==HIGH)
{
tone(speakerPin,550);

}
else
{
noTone(speakerPin);
}
if(flag==1&&digitalRead(signal_pi)==LOW)

{
mySerial.write("2");
flag=3;
}
}