彥霖 實驗筆記

void setup(){  
    pinMode(9, OUTPUT);
    pinMode(8, OUTPUT);
    Serial.begin(9600);
    Serial.println("Please Keyin y/n To Control LED...");
}

void loop(){  
  if(Serial.available()){
    if(Serial.read()=='y'){
      analogWrite(8, 255);
      analogWrite(9, 0);
      Serial.println("LED is ON.");
    }else{
      analogWrite(8, 0);
      analogWrite(9, 255);      
      Serial.println("LED is OFF.");
    }
  }  
}