//YWROBOT
//Compatible with the Arduino IDE 1.0
//Library version:1.1
#include <LiquidCrystal_I2C.h>
#define PIN_TRIG 3
#define PIN_ECHO 2
LiquidCrystal_I2C lcd(0x27,20,4);

void setup()
{
  Serial.begin(115200);
  pinMode(PIN_TRIG, OUTPUT);
  pinMode( PIN_ECHO, INPUT);
  pinMode(8, OUTPUT);
  pinMode(7, OUTPUT);

  lcd.init();          
  lcd.backlight();
  lcd.setCursor(3,0);
  lcd.print("puaymake");
  lcd.setCursor(2,1);



}


void loop()
{
   // start a new measurement :
  digitalWrite(PIN_TRIG, HIGH);
 delayMicroseconds(10);
 digitalWrite(PIN_TRIG, LOW);

 // read the result:
 int duration = pulseIn(PIN_ECHO, HIGH) ;
 Serial.print("distance in cm ");
 Serial.print(duration / 58);
 Serial.print("distance in inches "); 
 Serial.print(duration / 148);
    lcd.setCursor(2,1);
    lcd.print(duration / 58);

    if(duration/58<200)
  {
    digitalWrite(8, HIGH);
    delay(100);
  }else{
    digitalWrite(8, LOW);
    delay(100);
  }

  if(duration/58>300)
  {
    digitalWrite(7, HIGH);
    delay(100);
  }else{
    digitalWrite(7, LOW);
    delay(100);
  }
 }