int LED = 2;
int swt = 9;
int active = 0;

void setup() {
  // put your setup code here, to run once:
  Serial.begin(9600);
  pinMode(LED, OUTPUT);
  pinMode(swt, INPUT);
}

void loop() {
  // put your main code here, to run repeatedly:
  int x = digitalRead(swt);
  Serial.print(x);
  delay(100);
}
void x(){
  if (digitalRead(swt) == HIGH){
     active = !active;
     delay(1500);
  }
  Serial.print(active);
  digitalWrite(LED, active);

}