#include <Servo.h>
Servo servo;
//________________________________________________//
#include <LiquidCrystal_I2C.h>
LiquidCrystal_I2C lcd(0x27, 16, 2);
//________________________________________________//
#define trigPin 9
#define echoPin 8
void setup() {
  // put your setup code here, to run once:
 servo.attach(10);
 lcd.setCursor(0,0);
 lcd.print("Welcome !");
 delay(2000);
 lcd.clear();
//________________________________________________//
 lcd.init();
 lcd.backlight();

}

void loop() {
  // put your main code here, to run repeatedly:
 long duration, distance;
digitalWrite(trigPin, LOW);
delayMicroseconds(2);
digitalWrite(trigPin, HIGH);
delayMicroseconds(10);
digitalWrite(trigPin, LOW);
duration = pulseIn(echoPin, HIGH);
distance = (duration/2) / 29.1; 
//________________________________________________//

digitalWrite(trigPin, LOW);
delayMicroseconds(2);
digitalWrite(trigPin, HIGH);
delayMicroseconds(10);
digitalWrite(trigPin, LOW);
duration = pulseIn(echoPin, HIGH);
distance = (duration/2) / 29.1; 
lcd.setCursor(0, 0);
lcd.print("distance = ");
lcd.print(distance);

 lcd.setCursor(0,1);
 lcd.print("servo.write(0)");
 servo.write(0);
 delay(2000);
 lcd.clear();
//________________________________________________//

digitalWrite(trigPin, LOW);
delayMicroseconds(2);
digitalWrite(trigPin, HIGH);
delayMicroseconds(10);
digitalWrite(trigPin, LOW);
duration = pulseIn(echoPin, HIGH);
distance = (duration/2) / 29.1; 
lcd.setCursor(0, 0);
lcd.print("distance = ");
lcd.print(distance);

 lcd.setCursor(0,1);
 lcd.print("servo.write(45)");
 servo.write(45);
 delay(2000);
 lcd.clear();
//________________________________________________//

digitalWrite(trigPin, LOW);
delayMicroseconds(2);
digitalWrite(trigPin, HIGH);
delayMicroseconds(10);
digitalWrite(trigPin, LOW);
duration = pulseIn(echoPin, HIGH);
distance = (duration/2) / 29.1; 
lcd.setCursor(0, 0);
lcd.print("distance = ");
lcd.print(distance);

 lcd.setCursor(0,1);
 lcd.print("servo.write(90)");
  servo.write(90);
 delay(2000);
 lcd.clear();
//________________________________________________//

digitalWrite(trigPin, LOW);
delayMicroseconds(2);
digitalWrite(trigPin, HIGH);
delayMicroseconds(10);
digitalWrite(trigPin, LOW);
duration = pulseIn(echoPin, HIGH);
distance = (duration/2) / 29.1; 
lcd.setCursor(0, 0);
lcd.print("distance = ");
lcd.print(distance);

 lcd.setCursor(0,1);
 lcd.print("servo.write(135)");
  servo.write(135);
 delay(2000);
 lcd.clear();
//________________________________________________//

digitalWrite(trigPin, LOW);
delayMicroseconds(2);
digitalWrite(trigPin, HIGH);
delayMicroseconds(10);
digitalWrite(trigPin, LOW);
duration = pulseIn(echoPin, HIGH);
distance = (duration/2) / 29.1; 
lcd.setCursor(0, 0);
lcd.print("distance = ");
lcd.print(distance);

 lcd.setCursor(0,1);
 lcd.print("servo.write(180)");
  servo.write(180);
 delay(2000);
 lcd.clear();
}