#include <DHT.h>

#define DHTPIN 16
#define DHTTYPE DHT22

#define SOIL_SENSOR 26
#define RAIN_SENSOR 27

#define RELAY_PIN 15
#define LED_PIN 17
#define BUTTON_PIN 14

DHT dht(DHTPIN, DHTTYPE);

int soilValue;
int rainValue;
float temperature;
float humidity;

void setup()
{
    Serial.begin(115200);

    pinMode(RELAY_PIN, OUTPUT);
    pinMode(LED_PIN, OUTPUT);
    pinMode(BUTTON_PIN, INPUT_PULLUP);

    digitalWrite(RELAY_PIN, LOW);
    digitalWrite(LED_PIN, LOW);

    dht.begin();
}

void loop()
{
    soilValue = analogRead(SOIL_SENSOR);
    rainValue = analogRead(RAIN_SENSOR);

    temperature = dht.readTemperature();
    humidity = dht.readHumidity();

    Serial.println("---------------");
    
    Serial.print("Soil Moisture Value : ");
    Serial.println(soilValue);

    Serial.print("Rain Sensor Value : ");
    Serial.println(rainValue);

    Serial.print("Temperature : ");
    Serial.println(temperature);

    Serial.print("Humidity : ");
    Serial.println(humidity);

    if(soilValue < 2000 && rainValue > 2000)
    {
        digitalWrite(RELAY_PIN, HIGH);
        digitalWrite(LED_PIN, HIGH);

        Serial.println("Motor ON");
    }
    else
    {
        digitalWrite(RELAY_PIN, LOW);
        digitalWrite(LED_PIN, LOW);

        Serial.println("Motor OFF");
    }

    if(digitalRead(BUTTON_PIN) == LOW)
    {
        digitalWrite(RELAY_PIN, LOW);
        digitalWrite(LED_PIN, LOW);

        Serial.println("Manual Stop Button Pressed");
    }

    delay(2000);
}