// #define BLYNK_TEMPLATE_ID "TMPL6owEBDgWa"
// #define BLYNK_TEMPLATE_NAME "UAP"
// #define BLYNK_AUTH_TOKEN "dlPKyycmdwqwzK0-ssYnaWJChVyhtpAp"

// #include <ESP8266WiFi.h>
// #include <BlynkSimpleEsp8266.h>

// WiFi Credentials
// char ssid[] = "zachriek";
// char pass[] = "bn4jxzju";

#include <Wire.h>
#include <LiquidCrystal_I2C.h>
#include <DHT.h>

LiquidCrystal_I2C lcd(0x27, 16, 2); // SDA = A4, D2 | SCL = A5, D1

#define SOIL_MOISTURE_PIN A0
#define DHT_PIN 2 // D5
#define RELAY_PIN 3 // D6
#define LED_PIN 4 // D7
#define LED2_PIN 5 // D8

#define DHTTYPE DHT22
#define SOIL_DRY_THRESHOLD 30

DHT dht(DHT_PIN, DHTTYPE);

void setup() {
  Serial.begin(9600);

  pinMode(SOIL_MOISTURE_PIN, INPUT);
  pinMode(RELAY_PIN, OUTPUT);
  pinMode(LED_PIN, OUTPUT);
  pinMode(LED2_PIN, OUTPUT);

  // Blynk.begin(auth, ssid, pass);

  dht.begin();
  lcd.init();
  lcd.backlight();

  lcd.setCursor(0, 0);
  lcd.print("KELOMPOK 2A");
  lcd.setCursor(0, 1);
  lcd.print("Taufik Zachrie Zira");

  delay(1000);

  for (int lcdPosition = 0; lcdPosition < 20; lcdPosition++) {
    lcd.scrollDisplayLeft();
    delay(300);
  }

  lcd.clear();
}

void loop() {
  // Blynk.run();
  
  int soilValue = analogRead(SOIL_MOISTURE_PIN);
  int soilPercent = map(soilValue, 0, 1023, 100, 0);
  float temperature = dht.readTemperature();
  float humidity = dht.readHumidity();

  Serial.print("Soil Moisture: ");
  Serial.print(soilPercent);
  Serial.print(" | Temp: ");
  Serial.print(temperature);
  Serial.print(" C | Hum: ");
  Serial.print(humidity);
  Serial.println(" %");

  // Blynk.virtualWrite(V0, 1);

  lcd.setCursor(0, 0);
  lcd.print("T: ");
  lcd.print(temperature, 1);
  lcd.print("C H: ");
  lcd.print(humidity, 0);
  lcd.print("%");

  lcd.setCursor(0, 1);
  lcd.print("Soil: ");
  lcd.print(soilPercent);
  lcd.print("%");
  
  if (soilPercent < SOIL_DRY_THRESHOLD) {
    digitalWrite(RELAY_PIN, LOW);
    digitalWrite(LED_PIN, HIGH);
    digitalWrite(LED2_PIN, LOW);
    lcd.print(" BASAH");
  } else {
    digitalWrite(RELAY_PIN, HIGH);
    digitalWrite(LED_PIN, LOW);
    digitalWrite(LED2_PIN, HIGH);
    lcd.print(" KERING");
  }

  delay(2000);
}