#include <WiFi.h>
#include <HTTPClient.h>

const char* ssid = "Wokwi-GUEST";
const char* password = "";
const char* server = "api.thingspeak.com";
const char* apiKey = "TGRXPY7QEBTWUQKN"; 

#define PIR_PIN 6
#define LED_PIN 7 

void setup() {
  Serial.begin(115200);
  pinMode(PIR_PIN, INPUT);
  pinMode(LED_PIN, OUTPUT);

  WiFi.begin(ssid, password);

  while (WiFi.status() != WL_CONNECTED) {
    delay(1000);
    Serial.println("Connecting to WiFi...");
  }

  Serial.println("Connected to WiFi");
}

void loop() {
  int motionDetected = digitalRead(PIR_PIN);

  if (motionDetected) {
    Serial.println("Motion detected!");
    digitalWrite(LED_PIN, HIGH); 
    sendDataToThingSpeak(1); 
  } else {
    Serial.println("No motion detected");
    digitalWrite(LED_PIN, LOW); 
  }

  delay(1000); 
}

void sendDataToThingSpeak(int motion) {
  if ((WiFi.status() == WL_CONNECTED)) {
    HTTPClient http;

    String url = "http://";
    url += server;
    url += "/update?api_key=";
    url += apiKey;
    url += "&field1=";
    url += String(motion);

    Serial.print("Sending data to ThingSpeak: ");
    Serial.println(url);

    http.begin(url); 
    int httpResponseCode = http.GET(); 

    if (httpResponseCode > 0) {
      Serial.print("HTTP Response code: ");
      Serial.println(httpResponseCode);
    } else {
      Serial.print("Error sending data to ThingSpeak. HTTP error code: ");
      Serial.println(httpResponseCode);
    }

    http.end(); 
  }
}