#define SW 11
#define LED 12
void setup() 
{
  pinMode(SW, INPUT);
  pinMode(LED, OUTPUT);
  Serial.begin(9600);
}

void loop() 
{
int status=digitalRead(SW);
Serial.println(status);
if(status==1)
{
digitalWrite(LED, HIGH);
Serial.println("switch is pressed");
}
else
{
 digitalWrite(LED, LOW);
Serial.println("switch is not pressed"); 
}
}