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

const char* WIFI_NAME = "Wokwi-GUEST";
const char* WIFI_PASSWORD = "";
const int myChannelNumber = 2453469;
const char* myApiKey = "WWLZB2AQ9OI4RWFW";
const char* server = "api.thingspeak.com";

WiFiClient client;

int buzzer = 13;
int pir = 15;
int value = 0;

void setup() {
  Serial.begin(115200);
  pinMode(buzzer, OUTPUT);
  pinMode(pir, INPUT);
  
  WiFi.begin(WIFI_NAME, WIFI_PASSWORD);
  while (WiFi.status() != WL_CONNECTED) {
    delay(1000);
    Serial.println("Wifi not connected");
  }
  
  Serial.println("Wifi Connected!");
  Serial.println("Local IP: " + String(WiFi.localIP()));
  
  ThingSpeak.begin(client);
}

void loop() {
  value = digitalRead(pir);
  int pir_state = (value == HIGH) ? 1 : 0;

  ThingSpeak.setField(1, pir_state);

  if (value == HIGH) {
    digitalWrite(buzzer, HIGH);
    Serial.println("Motion Detected");
  } else {
    digitalWrite(buzzer, LOW);
    Serial.println("No Motion Detected");
  }

  int x = ThingSpeak.writeFields(myChannelNumber, myApiKey);
  if (x == 200) {
    Serial.println("Data pushed successfully");
  } else {
    Serial.println("Push Error: " + String(x));
  }

  Serial.println("---");
  delay(5000);
}