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

#define LED_PIN 13
#define PIR_PIN 14

const char* ssid = "Wokwi-GUEST";
const char* password = "";
const char* server = "api.thingspeak.com";
const String apiKey = "LW1TZ1622TWWS3E9";

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

void loop() {
  if (digitalRead(PIR_PIN) == HIGH) {
    Serial.println("Motion detected!");
    digitalWrite(LED_PIN, HIGH); // Turn on LED
    sendToThingSpeak();
    delay(1000); // Delay for 1 second
    digitalWrite(LED_PIN, LOW); 
    sendToThingSpeak();;// Turn off LED
  }
  delay(1000); // Check motion sensor every 100ms
}

void connectToWiFi() {
  WiFi.begin(ssid, password);
  while (WiFi.status() != WL_CONNECTED) {
    delay(1000);
    Serial.println("Connecting to WiFi...");
  }
  Serial.println("Connected to WiFi");
}

void sendToThingSpeak() {
  if (WiFi.status() == WL_CONNECTED) {
    HTTPClient http;
    String url = "http://";
    url += server;
    url += "/update?api_key=";
    url += apiKey;
    url += "&field1=1"; // Change field1 to the desired field number on ThingSpeak

    http.begin(url);

    int httpCode = http.GET();
    if (httpCode > 0) {
      Serial.printf("[HTTP] GET... code: %d\n", httpCode);
    } else {
      Serial.printf("[HTTP] GET... failed, error: %s\n", http.errorToString(httpCode).c_str());
    }

    http.end();
  } else {
    Serial.println("WiFi not connected, unable to send data to ThingSpeak");
  }
}