// EcoAqua - Smart Soil Moisture & Automated Irrigation Alert
const int SOIL_SENSOR_PIN = A0;  // Simulated moisture sensor pin
const int PUMP_LED_PIN = 13;      // Simulated irrigation pump indicator
const int MOISTURE_THRESHOLD = 400; // Threshold for dry soil

void setup() {
  Serial.begin(9600);
  pinMode(PUMP_LED_PIN, OUTPUT);
  Serial.println("--- EcoAqua Smart Irrigation System Active ---");
}

void loop() {
  // Read simulated moisture value (0 - 1023)
  int moistureLevel = analogRead(SOIL_SENSOR_PIN);
  
  // Convert value to a readable percentage
  int moisturePercent = map(moistureLevel, 0, 1023, 0, 100);

  Serial.print("Soil Moisture Level: ");
  Serial.print(moisturePercent);
  Serial.println("%");

  // Automated decision loop
  if (moistureLevel < MOISTURE_THRESHOLD) {
    digitalWrite(PUMP_LED_PIN, HIGH); // Turn on pump LED
    Serial.println("ALERT: Soil moisture LOW! Automated pump ENABLED.");
  } else {
    digitalWrite(PUMP_LED_PIN, LOW);  // Turn off pump LED
    Serial.println("STATUS: Soil moisture OPTIMAL. Pump OFF.");
  }

  delay(2000); // Poll every 2 seconds
}