Arduino ile metre yapmak (lcd+ultrasonik sensör)//Rozzz

#include <Arduino.h>
#include <Wire.h>
#include <SoftwareSerial.h>

#include "LiquidCrystal_I2C_TR.h"

double angle_rad = PI/180.0;
double angle_deg = 180.0/PI;
LiquidCrystal_I2C_TR lcd_I2C_TR(0x27, 16, 2);
 **** imlecAyarla(LiquidCrystal_I2C_TR *lcd, int imlecDurum){
     switch (imlecDurum) {
          case 1: lcd->cursor();break;
          case 2: lcd->noCursor();break;
          case 3: lcd->blink();break;
          case 4: lcd->noBlink();break;
    }
};
float getDistance(int trig,int echo){
    pinMode(trig,OUTPUT);
    digitalWrite(trig,LOW);
    delayMicroseconds(2);
    digitalWrite(trig,HIGH);
    delayMicroseconds(10);
    digitalWrite(trig,LOW);
    pinMode(echo, INPUT);
    return pulseIn(echo,HIGH,30000)/58.0;
}

**** setup(){
    lcd_I2C_TR.init();
    lcd_I2C_TR.setBacklight(1);
    lcd_I2C_TR.setCursor(1-1, 1-1);
    lcd_I2C_TR.setBacklight(1);
}

**** loop(){
    lcd_I2C_TR.setCursor(1-1, 1-1);
    lcd_I2C_TR.print(getDistance(13,12));
    lcd_I2C_TR.setCursor(1-1, 2-1);
    lcd_I2C_TR.print("santimetre");
    _delay(1);
    lcd_I2C_TR.clear();
    _loop();
}

**** _delay(float seconds){
    long endTime = millis() + seconds * 1000;
    while(millis() < endTime)_loop();
}

**** _loop(){
}