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

const char* ssid = "YOUR_WIFI_SSID";
const char* password = "YOUR_WIFI_PASSWORD";
const char* apiKey = "YOUR_WRITE_API_KEY";
const long channelId = YOUR_CHANNEL_ID;

const int PIRPin = 4;
const int BuzzerPin = 2;

WiFiClient client;

void setup() {
  Serial.begin(115200);
  pinMode(PIRPin, INPUT);
  pinMode(BuzzerPin, OUTPUT);

  WiFi.begin(ssid, password);
  while (WiFi.status() != WL_CONNECTED) {
    delay(500);
    Serial.println("Connecting to WiFi...");
  }
  Serial.println("Connected to WiFi");

  ThingSpeak.begin(client);
}

void loop() {
  int motionState = digitalRead(PIRPin);
  
  if (motionState == HIGH) {
    digitalWrite(BuzzerPin, HIGH);
    delay(500);
    digitalWrite(BuzzerPin, LOW);
    ThingSpeak.setField(1, 1);
  } else {
    ThingSpeak.setField(1, 0);
  }
  
  int responseCode = ThingSpeak.writeFields(channelId, apiKey);
  if (responseCode == 200) {
    Serial.println("Data sent to ThingSpeak successfully!");
  } else {
    Serial.print("Error sending data to ThingSpeak. Response code: ");
    Serial.println(responseCode);
  }
  
  delay(5000);  // Send data every 5 seconds
}