#include <WiFi.h>
#include "DHTesp.h"
#include "ThingSpeak.h"

// Pin Definitions
const int DHT_PIN = 15;
const int LDR_PIN = 34; // ADC1 channel 6
const int LED_PIN = 13;

// WiFi Configuration
const char* WIFI_NAME = "YourWiFiSSID";
const char* WIFI_PASSWORD = "YourWiFiPassword";

// ThingSpeak Configuration
const int myChannelNumber = 2226105;
const char* myApiKey = "5ZZNFKTB60NEJIV9";
const char* server = "api.thingspeak.com";

DHTesp dhtSensor;
WiFiClient client;

void setup() {
  Serial.begin(115200);
  dhtSensor.setup(DHT_PIN, DHTesp::DHT22);
  pinMode(LED_PIN, OUTPUT);
  pinMode(LDR_PIN, INPUT);
  
  WiFi.begin(WIFI_NAME, WIFI_PASSWORD);
  while (WiFi.status() != WL_CONNECTED){
    delay(1000);
    Serial.println("Wifi not connected");
  }
  Serial.println("Wifi connected !");
  Serial.println("Local IP: " + String(WiFi.localIP()));
  WiFi.mode(WIFI_STA);
  ThingSpeak.begin(client);
}

void loop() {
  TempAndHumidity data = dhtSensor.getTempAndHumidity();
  
  int ldrValue = analogRead(LDR_PIN);
  float voltage = ldrValue * (3.3 / 4095.0); // Convert to voltage
  
  ThingSpeak.setField(1, data.temperature);
  ThingSpeak.setField(2, data.humidity);
  ThingSpeak.setField(3, voltage); // Assuming field 3 is for LDR voltage

  if (data.temperature > 35 || data.temperature < 12 || data.humidity > 70 || data.humidity < 40) {
    digitalWrite(LED_PIN, HIGH);
  } else {
    digitalWrite(LED_PIN, LOW);
  }
  
  int x = ThingSpeak.writeFields(myChannelNumber, myApiKey);
  
  Serial.println("Temp: " + String(data.temperature, 2) + "°C");
  Serial.println("Humidity: " + String(data.humidity, 1) + "%");
  Serial.println("LDR Voltage: " + String(voltage, 3) + "V");
  
  if (x == 200) {
    Serial.println("Data pushed successfully");
  } else {
    Serial.println("Push error: " + String(x));
  }
  Serial.println("---");

  delay(10000);
}