void setup() {
Serial.begin(115200);
pinMode(32, OUTPUT);
pinMode(26, OUTPUT);
pinMode(13, OUTPUT);
}

void loop() {
  digitalWrite(32, HIGH);
  delay(3000);
   digitalWrite(32, LOW);
    digitalWrite(26, HIGH);
    delay(3000);
     digitalWrite(26, LOW);
    digitalWrite(13, HIGH);
    delay(3000);
     digitalWrite(13, LOW);
   
   
}