/* SDA = A4, SCL = A5 */

#include <LiquidCrystal_I2C.h>

#define I2C_ADDR    0x27
#define LCD_COLUMNS 20
#define LCD_LINES   4

LiquidCrystal_I2C lcd(I2C_ADDR, LCD_COLUMNS, LCD_LINES);

const int pompa = 8;
int sensor;

void setup() {
  
  lcd.init();
  lcd.backlight();
  pinMode(pompa,OUTPUT);
  digitalWrite(pompa,LOW);
  
}


void loop() {
  lcd.setCursor(2, 0);
  lcd.print("Penyiram Tanaman");
  sensor = analogRead(0);
  sensor = map(sensor, 0, 1023, 100, 0);
  lcd.setCursor(0, 1);
  lcd.print("Kelembapan");
  lcd.setCursor(3, 2);
  lcd.print("=>> ");
  lcd.print(sensor);
  lcd.print(" %");
  lcd.print(" <<=");
  lcd.setCursor(11, 3);
  lcd.print("by:penzol");

  int statusTanah = sensor;  
  if(statusTanah <= 20) {
    digitalWrite(pompa,LOW);
  }
  else if(statusTanah >= 55) {
    digitalWrite(pompa,HIGH);
  }
delay(1000);
}