int bottuNew;
int bottuOld = 1;
int LED =0;

void setup() {
  pinMode(8, OUTPUT);
  pinMode(12, INPUT);
  Serial.begin(9600);
  // put your setup code here, to run once:

}

void loop() {
  Serial.println(digitalRead(12));
  bottuNew=digitalRead(12);
  if((bottuOld == 0) && (bottuNew==1) ){
    if(LED == 0){
      digitalWrite(8, HIGH);
      LED = 1;

    }
    else{
      digitalWrite(8, LOW);
      LED = 0;
    }
  }
    bottuOld = bottuNew;
    delay(00);
  
  // put your main code here, to run repeatedly:
}