#include <LiquidCrystal_I2C.h>
LiquidCrystal_I2C lcd(0x27, 16, 2);

int vr=32;
int vrvalue;
int led1=16;
int led2=17;
int led3=5;
int led4=19;
void setup() {
  lcd.init();
  lcd.backlight();
  pinMode(led1, OUTPUT);
  pinMode(led2, OUTPUT);
  pinMode(led3, OUTPUT);
  pinMode(led4, OUTPUT);
 

}
void loop(){
vrvalue = analogRead(vr);
  lcd.setCursor(1,0);
  lcd.print("vr=  ");
  lcd.setCursor(5,0);
  lcd.print(vrvalue);


 

if (vrvalue<=1000){
  digitalWrite(led1, 1);
  digitalWrite(led2, 0);
  digitalWrite(led3, 0);
  digitalWrite(led4, 0);
  lcd.setCursor(5,1);
  lcd.print("RED ");
  delay(500);
  lcd.clear();
}

else if (vrvalue >1001&&vrvalue<2000){
  digitalWrite(led1, 0);
  digitalWrite(led2, 1);
  digitalWrite(led3, 0);
  digitalWrite(led4, 0);
  lcd.setCursor(5,1);
  lcd.print("yellow ");
  delay(500);
  lcd.clear();

}

else if (vrvalue >2001&&vrvalue<3000){
  digitalWrite(led1, 0);
  digitalWrite(led2, 0);
  digitalWrite(led3, 1);
  digitalWrite(led4, 0);
  lcd.setCursor(5,1);
  lcd.print("orange ");
  delay(500);
  lcd.clear();
}
else if (vrvalue >=3000){
  digitalWrite(led1, 0);
  digitalWrite(led2, 0);
  digitalWrite(led3, 0);
  digitalWrite(led4, 1);
  lcd.setCursor(5,1);
  lcd.print("pink ");
  delay(500);
  lcd.clear();
}
}