void setup() 
{
  // put your setup code here, to run once:
  Serial.begin(115200);
 pinMode(26, OUTPUT);
 pinMode(25, INPUT);
}

void loop() {
  int switchcase = digitalRead(25);
  if (switchcase == 1)
  {
  
  digitalWrite(26, HIGH);
  delay(1000);
  digitalWrite(26, LOW);
  Serial.println("switch on ");
  }// put your main code here, to run repeatedly:
  else
  {
    Serial.println("switch off");
    digitalWrite(26, LOW);
    // this speeds up the simulation
  }
}