#include <Wire.h>
#include <LiquidCrystal_I2C.h> // https://github.com/johnrickman/LiquidCrystal_I2C

LiquidCrystal_I2C lcd(0x27, 16, 2);

int val;
#define pin_soil A0
#define pin_pomp 10

void setup() {
  Serial.begin(9600);
  lcd.init();
  lcd.init();
  lcd.backlight();
  pinMode(pin_soil, INPUT);
  pinMode(pin_pomp, OUTPUT);
}

void loop() {
  val = analogRead(pin_soil);
  val = map(val, 0, 1023, 100, 0);
  Serial.println(val);
  if (val < 50)
  {
    digitalWrite(pin_pomp, LOW);
    Serial.println("soil is bad  " );
    lcd.setCursor(0, 0);
    lcd.print("Soil is Bad  ");
    lcd.setCursor(0, 1);
    lcd.print(val);
    lcd.print("  ");
    lcd.setCursor(3, 1);
    lcd.print("%");

  } else {
    digitalWrite(pin_pomp, HIGH);
    Serial.println("soil is good  " );
    lcd.setCursor(0, 0);
    lcd.print("Soil is Good  ");
    lcd.setCursor(0, 1);
    lcd.print(val);
    lcd.print("  ");
    lcd.setCursor(3, 1);
    lcd.print("%");
  }
  delay(1000);
}