#define BAUD 9600
#define led 13
void setup(){
Serial.begin(BAUD);
pinMode(led, OUTPUT);
}
void loop(){
String input;
Serial.println("OK");
if(Serial.available() > 0){
input = Serial.readStringUntil('\n');
}
if(input == "1"){
while (Serial.available()<=0){
input = Serial.read();
Serial.println("*");
}
delay(3000);
if(Serial.available() > 0){
input = Serial.readStringUntil('\n');
Serial.println("+");
Serial.println(input);
Serial.println("++");
}
digitalWrite(led, HIGH);
Serial.println("Led is on");
}
if (input == "OFF")
{
digitalWrite(led, LOW);
Serial.println("Led is off");
}
input = "";
}