byte sw1 = 5;
byte sw2 = 17;
byte sw3 = 16;
int led1 = 12;
int led2 = 14;
int led3 = 27;
int vr = 34;
int PIR = 13;
#include <Wire.h>
#include <LiquidCrystal_I2C.h>
const int pingPin = 19;
int inPin = 18;
float val1 = 0;
LiquidCrystal_I2C LCD = LiquidCrystal_I2C(0x27, 16, 2);

void setup() {
  pinMode(sw1, INPUT);
  pinMode(sw2, INPUT);
  pinMode(sw3, INPUT);
  pinMode(led1, OUTPUT);
  pinMode(led2, OUTPUT);
  pinMode(led3, OUTPUT);
  pinMode(vr, INPUT);
  pinMode(PIR, INPUT);
  Serial.begin(115200);

  LCD.init();
  LCD.backlight();
  LCD.clear();
  //LCD.setCursor(0, 0);
  //LCD.setCursor(7, 0);
  //LCD.print("oil");
  //LCD.setCursor(6, 1);
  //LCD.print("WiFi");
}

void loop() {
{
long duration, cm;
 
pinMode(pingPin, OUTPUT);
 
digitalWrite(pingPin, LOW);
delayMicroseconds(2);
digitalWrite(pingPin, HIGH);
delayMicroseconds(5);
digitalWrite(pingPin, LOW);
pinMode(inPin, INPUT);
duration = pulseIn(inPin, HIGH);
 
cm = microsecondsToCentimeters(duration);
 
Serial.print(cm);
Serial.print("cm");
Serial.println();
LCD.setCursor(6, 1);
LCD.print(cm);
LCD.setCursor(9, 1);
LCD.print("cm");
delay(100);
}
  //int digitalRead(PIR);
  //int vrValue = analogRead(vr);
 // val1 = ((3.3/4095)*vrValue);
  //Serial.println((3.3/4095)*vrValue);
  //LCD.setCursor(6, 1);
  //LCD.println(val1);
  //LCD.setCursor(11, 1);
//  LCD.print("V");
  //int vrValue = analogRead(vr);
  //Serial.println(vrValue);
  //LCD.println(val1);
  //LCD.setCursor(7, 0);
  //LCD.println(vrValue);
  int value = digitalRead(PIR);

  if( value == HIGH){
    LCD.clear();
    LCD.setCursor(6, 0);
    LCD.print("ON");
    digitalWrite(led1, HIGH);
    digitalWrite(led2, HIGH);
    digitalWrite(led3, LOW);
    delay(300);
  }
  else
  {
    LCD.clear();
    LCD.setCursor(6, 0);
    LCD.print("OFF");
    digitalWrite(led3, HIGH);
    digitalWrite(led1, LOW);
    digitalWrite(led2, LOW);
    delay(300);
  }



  //if(digitalRead(sw1)== LOW)
  //{
    //LCD.clear();
    //LCD.setCursor(3, 0);
   // LCD.print("Nutthawut");
    //digitalWrite(led1, HIGH);
    //delay(300);
    //digitalWrite(led2, HIGH);
    //delay(300);
    //digitalWrite(led3, HIGH);
    //delay(300);
    //digitalWrite(led1, LOW);
    //digitalWrite(led2, LOW);
    //digitalWrite(led3, LOW);
    //delay(300);
    
  //}
 //if(digitalRead(sw2)== LOW){
   // LCD.clear();
   // LCD.setCursor(3, 0);
   // LCD.print("Thongmeesee");
    //digitalWrite(led3, HIGH);
    //delay(300);
   // digitalWrite(led2, HIGH);
    //delay(300);
   // digitalWrite(led1, HIGH);
   // delay(300);
   // digitalWrite(led1, LOW);
    //digitalWrite(led2, LOW);
   // digitalWrite(led3, LOW);
    //(300);
  }
long microsecondsToCentimeters(long microseconds)
{
// The speed of sound is 340 m/s or 29 microseconds per centimeter.
// The ping travels out and back, so to find the distance of the
// object we take half of the distance travelled.
return microseconds / 29 / 2;
}
  //if(digitalRead(sw3)== LOW){
   // digitalWrite(led1, HIGH);
   // digitalWrite(led2, HIGH);
   // digitalWrite(led3, HIGH);
   // delay(300);
   // digitalWrite(led1, LOW);
   // digitalWrite(led2, LOW);
   // digitalWrite(led3, LOW);
   // delay(300);
 // }else
 // digitalWrite(led1, LOW);
 // digitalWrite(led2, LOW);
 // digitalWrite(led3, LOW);
//}