#include <DHTesp.h>

// -------- PIN DEFINITIONS --------
#define PIR_PIN   14
#define DHT_PIN   15
#define LDR_PIN   34
#define LED_PIN   12

DHTesp dht;

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

  pinMode(PIR_PIN, INPUT);
  pinMode(LED_PIN, OUTPUT);

  dht.setup(DHT_PIN, DHTesp::DHT22);

  Serial.println("ESP32 Energy Monitoring System Started");
}

void loop() {

  // ---- PIR ----
  int motion = digitalRead(PIR_PIN);

  // ---- LDR ----
  int ldrValue = analogRead(LDR_PIN);   // 0–4095

  // ---- DHT22 ----
  TempAndHumidity data = dht.getTempAndHumidity();

  // ---- LOGIC ----
  if (motion == HIGH) {
    digitalWrite(LED_PIN, HIGH);
  } else {
    digitalWrite(LED_PIN, LOW);
  }

  // ---- SERIAL OUTPUT ----
  Serial.println("------ Sensor Data ------");
  Serial.print("Motion: ");
  Serial.println(motion ? "Detected" : "No Motion");

  Serial.print("Light Intensity (LDR): ");
  Serial.println(ldrValue);

  Serial.print("Temperature: ");
  Serial.print(data.temperature);
  Serial.println(" °C");

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

  Serial.println("-------------------------\n");

  delay(2000);
}