const int led= 0;
const int boton= 9;
int botonAnt= LOW;
int botonAct= LOW;
const int led2= 4;
const int boton2= 4;
int botonAnt2= LOW;
int botonAct2= LOW;

void setup() {
pinMode(led, OUTPUT);
pinMode(boton, INPUT_PULLUP); 
pinMode(led2, OUTPUT);
pinMode(boton2, INPUT_PULLUP); 
}

void loop(){
  botonAct = digitalRead(boton);
  if (botonAnt == HIGH && botonAct == LOW);
  { digitalWrite(led, !digitalRead(led));}
  botonAnt = botonAct;

  botonAct2 = digitalRead(boton2);
  if (botonAnt2 == HIGH && botonAct2 == LOW);
  { digitalWrite(led2, !digitalRead(led2));}
  botonAnt2 = botonAct2;
}