Relais per esp32 Steuern

int safe1 = 0;
int safe2 = 0;

 //relay 1
  pinMode(12, OUTPUT);
  pinMode(13, INPUT_PULLUP);
    // relay 2
  pinMode(14, OUTPUT);
  pinMode(15, INPUT_PULLUP);

  digitalWrite(12,HIGH);
  digitalWrite(14,HIGH);

  pinMode(4, OUTPUT);
}

void loop() 
{  
  safe1 = schalten(13,12,safe1);
  safe2 = schalten(15,14,safe2);
  
}

int schalten(int in, int out,int safe){
  if(digitalRead(in) == HIGH && (safe == 0))
  {
   safe = 1; 
   digitalWrite(out, HIGH);
   while(digitalRead(in) == HIGH){
    delay(10);
   }
  }
  else if(digitalRead(in) == HIGH && (safe == 1))
  {    
    safe = 0;
    digitalWrite(out,LOW);
    while(digitalRead(in) == HIGH){
    delay(10);
   }
  }
  
  return(safe); 
}