#include <LiquidCrystal_I2C.h>
#define ledm 2
#define ledk 3
#define ledh 4

LiquidCrystal_I2C lcd(0x27, 16, 2); // I2C address 0x27, 16 column and 2 rows

void setup() {
  // put your setup code here, to run once:
pinMode(A0, INPUT);
pinMode(ledm, OUTPUT);
pinMode(ledk, OUTPUT);
pinMode(ledh, OUTPUT);
digitalWrite(ledm, LOW);
digitalWrite(ledk, LOW);
digitalWrite(ledm, LOW);
Serial.begin(9600);
}

void loop() {
  // put your main code here, to run repeatedly:
  int a = analogRead(A0);
  int nilai = map (a,0,1023,0,100); 
 if (nilai<= 33){
    digitalWrite(ledm, LOW);
    digitalWrite(ledk, LOW);
    digitalWrite(ledh, HIGH);

  }
  else if (nilai> 33 && nilai <=66){
    digitalWrite(ledm, LOW);
    digitalWrite(ledk, HIGH);
    digitalWrite(ledh, HIGH);

  }
  else if(nilai> 66 && nilai <=99){
    digitalWrite(ledm, HIGH);
    digitalWrite(ledk, HIGH);
    digitalWrite(ledh, HIGH);

  }
  else {
    digitalWrite(ledm, HIGH);
    digitalWrite(ledk, HIGH);
    digitalWrite(ledh, HIGH);
    delay(100);
    digitalWrite(ledm, LOW);
    digitalWrite(ledk, LOW);
    digitalWrite(ledh, LOW);

  }
 
}