#include <ESP8266WiFi.h>
#include <WiFiClient.h>

const char* ssid = "sreeja pavilon";             // Replace with your WiFi SSID
const char* password = "sreeja90";     // Replace with your WiFi Password
const char* server = "api.thingspeak.com";
String apiKey = "3ZWPQBH3ISXVE1RO";     // Replace with your ThingSpeak channel API Key

void setup() {
  Serial.begin(115200);  
  delay(10);

  // Connect to WiFi
  Serial.print("Connecting to ");
  Serial.println(ssid);
  WiFi.begin(ssid, password);
  while (WiFi.status() != WL_CONNECTED) {
    delay(500);
    Serial.print(".");
  }
  Serial.println("\nWiFi connected");
}

void loop() {
  if (WiFi.status() == WL_CONNECTED) { // Check WiFi connection
    WiFiClient client;

    if (client.connect(server, 80)) { // Connect to ThingSpeak server
      String url = "/channels/YOUR_CHANNEL_ID/fields/1.json?api_key=" + apiKey + "&results=1";
      // Send HTTP GET request
      client.print(String("GET ") + url + " HTTP/1.1\r\n" +
                   "Host: " + server + "\r\n" +
                   "Connection: close\r\n\r\n");

      unsigned long timeout = millis();
      while (client.available() == 0) {
        if (millis() - timeout > 5000) {
          Serial.println(">>> Client Timeout !");
          client.stop();
          return;
        }
      }

      // Read response
      while (client.available()) {
        String line = client.readStringUntil('\r');
        Serial.print(line); // Print the response in the serial monitor
      }
      Serial.println();
      client.stop();
    }
    else {
      Serial.println("Connection to ThingSpeak failed");
    }
  }
  delay(20000); // Retrieve data every 20 seconds
}