const int led = 13;
void setup() {
Serial.begin(9600);
pinMode(led, OUTPUT);
}
void loop() {
if(Serial.available()>0){
char data = Serial.read();
switch(data){
case '0':
digitalWrite(led, LOW);
Serial.println("LED IS OFF");
break;
case '1':
digitalWrite(led, HIGH);
Serial.println("LED IS ON");
break;
default:
break;
}
}
}