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

// Pin configuration and Wi-Fi credentials
const int DHT_PIN = 15; 
char ssid[] = "Wokwi-GUEST";      // Wi-Fi SSID
char pass[] = "";                 // Wi-Fi Password (if required)
const int myChannelNumber = 2779346; 
const char* myApiKey = "F48XMH2OQ6T8TLVH"; 

DHTesp dhtSensor; 
WiFiClient client; 

void setup() {
  // Start Serial communication
  Serial.begin(115200);

  // Setup the DHT sensor
  dhtSensor.setup(DHT_PIN, DHTesp::DHT22);

  // Connect to Wi-Fi
  WiFi.begin(ssid, pass); 
  while (WiFi.status() != WL_CONNECTED){
    delay(1000);
    Serial.println("Wifi not connected");
  }
  
  // Print the local IP after successful connection
  Serial.println("Wifi connected!");
  Serial.println("Local IP: " + String(WiFi.localIP())); 

  // Set Wi-Fi mode to Station (Client)
  WiFi.mode(WIFI_STA); 

  // Initialize ThingSpeak
  ThingSpeak.begin(client); 
}

void loop() {
  // Read temperature and humidity from DHT sensor
  TempAndHumidity data = dhtSensor.getTempAndHumidity();

  // Update fields for ThingSpeak
  ThingSpeak.setField(1, data.temperature);  // Field 1 for temperature
  ThingSpeak.setField(2, data.humidity);     // Field 2 for humidity

  // Write data to ThingSpeak
  int status = ThingSpeak.writeFields(myChannelNumber, myApiKey); 
  
  // Print the data to Serial Monitor
  Serial.println("Temp: " + String(data.temperature, 2) + "°C"); 
  Serial.println("Humidity: " + String(data.humidity, 1) + "%"); 
  
  // Check if data was successfully pushed
  if (status == 200) {
    Serial.println("Data pushed successfully"); 
  } else {
    Serial.println("Push error: " + String(status)); 
  }

  Serial.println("---"); 
  delay(10000);  // Wait 10 seconds before sending the next data
}