int pinPulsador=2;
int pinLED=7;
void setup() {
  // put your setup code here, to run once:
pinMode(pinPulsador, INPUT);
pinMode(pinLED, OUTPUT);
Serial.begin(9600);
}

void loop() {
  // put your main code here, to run repeatedly:
 int estado = digitalRead(pinPulsador);
 if(estado==1)
 {
digitalWrite(pinLED, HIGH);
 }
 else{
 digitalWrite(pinLED, LOW); 
 }
}