//HDD7860 hitachi comapany LCD 16*2 CGRAM DRAM  5*8 pixle size taken for one character on lcd display
//address of one cell 80 to 8f and c0 to cf
//

#include <LiquidCrystal.h>
LiquidCrystal lcd(19,18,5,4,2,15); 

void setup() {
  // put your setup code here, to run once:
  lcd.begin(16,2);
  pinMode(32,OUTPUT);
  pinMode(35,INPUT);
}

void loop() {
  digitalWrite(32,LOW);
  delayMicroseconds(2);
  digitalWrite(32,HIGH);
  delayMicroseconds(10);
  digitalWrite(32,LOW);
  delayMicroseconds(2);

  int duration=pulseIn(35,HIGH);
  //calculate distance in cm
  int distance=(duration*0.034)/2;
  if(distance>150){
  digitalWrite(21,HIGH);
  delay(1000);
  digitalWrite(21,LOW);}
lcd.setCursor(0,0);
lcd.print("Distance measure:");
lcd.setCursor(0,1);
lcd.print(distance);
}