int readPin=12;
int redLed=2;
int NEWswitchVal;
int OLDswitchVal=1;
int LEDstate=0;

void setup() {
  pinMode(readPin,INPUT);
  pinMode(redLed, OUTPUT);
  Serial.begin(9600);
}

void loop() {
  NEWswitchVal=digitalRead(readPin);
  Serial.println(NEWswitchVal);
  


  if(OLDswitchVal==0 && NEWswitchVal==1){
    if(LEDstate==0){
    digitalWrite(redLed,HIGH);
    LEDstate=1;
    }
  else{
  digitalWrite(redLed, LOW);
   LEDstate=0;
}

  }
OLDswitchVal=NEWswitchVal;
delay(100);
  }