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

#define redLedPin 18

void setup()
{
  Wire.begin(21, 22);
  Serial.begin(9600);
  lcd.init();
  lcd.backlight();

  pinMode(redLedPin, OUTPUT);
}

void loop()
{
  int16_t sensorValue = analogRead(35);
  float humidityPercent = map(sensorValue, 2165, 3135, 0, 100);

  digitalWrite(redLedPin, HIGH);
  delay(1000);                    
  digitalWrite(redLedPin, LOW);
  delay(1000);  

  lcd.clear();
  lcd.print("Kelembapan Tanah ");
  lcd.setCursor(0, 1); 
  lcd.print("Presentasi: ");
  lcd.print(humidityPercent);
  lcd.print("%");
  delay(500); 
}