#include <LiquidCrystal_I2C.h >
#include <Wire.h> 
const byte trigEchoTekPin = 10;
unsigned long sure;
LiquidCrystal_I2C lcd(0x27,20,4); 
int uzaklik;
void setup() {
  Serial.begin(9600);
  
  lcd.init();
  lcd.init();
   lcd.backlight();
  lcd.begin(16, 2);
  lcd.print("mesafe");
  
 
}

void loop() {
  pinMode(trigEchoTekPin, OUTPUT);
  digitalWrite(trigEchoTekPin, 0);
  delayMicroseconds(10);
  digitalWrite(trigEchoTekPin, 1);
  delayMicroseconds(10);
  pinMode(trigEchoTekPin, INPUT);

  sure = pulseInLong(trigEchoTekPin, 1);
  lcd.setCursor(0, 1);
  
  lcd.print((0.0343 * sure) / 2);
 
  lcd.setCursor(8, 0);
  lcd.print("cm");
  Serial.print(uzaklik);
  Serial.println("cm");

  delay(600);

}