#include <LiquidCrystal.h>
const int rs=7,es=6,d4=11,d5=10,d6=9,d7=8;
LiquidCrystal lcd (rs,es,d4,d5,d6,d7);
int trigerpin=13;
int echopin=12;
int distance;
long duration;
int array[10];
int buzz=5;
void setup() {
  lcd.begin(16,2);
  lcd.setCursor(0,0);
  lcd.print(" WELCOME ");
  delay(1500);
  lcd.clear();
pinMode(trigerpin, OUTPUT);
pinMode(echopin, INPUT);

}

void loop() {
  for(int i=0;i<=4;i++){
  digitalWrite(trigerpin, LOW);
  delayMicroseconds(2);
  digitalWrite(trigerpin, HIGH);
  delayMicroseconds(10);
 duration=pulseIn(echopin,HIGH);
 distance=duration*0.034/2;
 array[i]=distance;
 delay(1000);
  }
int avdis=0;
for(int i=0;i<=5;i++){
  avdis=avdis+array[i];
}
int aavdis=avdis/5;
 lcd.setCursor(0,0);
 lcd.print("Position");
 lcd.setCursor(0,1);
 lcd.print(aavdis);
 delay(100);
 lcd.clear();
 if (aavdis<50)
{
  digitalWrite(buzz,1);
  tone(buzz,100);
  lcd.setCursor(0,0);
  lcd.print("Stoped");
  delay(1000);
  lcd.clear();
}
else if(aavdis>=50&& aavdis<=200){
  digitalWrite(buzz,0);
  lcd.setCursor(0,0);
  lcd.print("Move");
  delay(1000);
  lcd.clear();
}
else{
  digitalWrite(buzz,0);
  lcd.setCursor(0,0);
  lcd.print("beyond limit");
  delay(1000);
  lcd.clear();
}
}