#define moveup 13
#define movedown 12
#define up_button 11
#define down_button 10
#define stop_button 9
#define upper_sensor 8
#define down_sensor 7
int n=0;
int move_up = false;
int move_down = false;
void setup()
{
  pinMode(moveup,OUTPUT);
  pinMode(movedown,OUTPUT);
  pinMode(up_button,INPUT);
  pinMode(down_button,INPUT);
  pinMode(stop_button,INPUT);
  pinMode(upper_sensor,INPUT);
  pinMode(down_sensor,INPUT);
  digitalWrite(moveup,LOW);
}

void loop()
{
  if((digitalRead(up_button)==HIGH)&&(digitalRead(upper_sensor)==LOW)&&(digitalRead(stop_button)==LOW)&&(digitalRead(down_button)==LOW)&&(digitalRead(down_sensor)==LOW))
  {
   move_up=true; move_down=false;
   digitalWrite(moveup,HIGH);
      digitalWrite(movedown,LOW);
  }
  else if((digitalRead(down_button)==HIGH)&&(digitalRead(down_sensor)==LOW)&&(digitalRead(stop_button)==LOW)&&(digitalRead(up_button)==LOW)&&(digitalRead(upper_sensor)==LOW))
  {
    move_up=false; move_down=true;
    digitalWrite(moveup,LOW);
      digitalWrite(movedown,HIGH);
  }
  else if((digitalRead(stop_button)==HIGH)&&(digitalRead(up_button)==LOW)&&(digitalRead(upper_sensor)==LOW)&&(digitalRead(down_button)==LOW)&&(digitalRead(down_sensor)==LOW))
  {
    move_up=false; move_down=false;
    digitalWrite(moveup,LOW);
      digitalWrite(movedown,LOW);
  }
  else if((digitalRead(stop_button)==HIGH)||(digitalRead(upper_sensor)==HIGH)||(digitalRead(down_sensor)==HIGH))
  {
    move_up=false; move_down=false;
    digitalWrite(moveup,LOW);
      digitalWrite(movedown,LOW);
  }
  else
  {
    //nothing do
  }
  delay(100);
  
}