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

// Replace with your network credentials
const char* ssid = "Wokwi-GUEST";
const char* password = " ";

// Replace with your Telegram bot token and chat ID
const String telegramToken = "YOUR_BOT_TOKEN";
const String chatId = "YOUR_CHAT_ID";

// PIR sensor pin
const int pirSensorPin = 23;

bool motionDetected = false;

void setup() {
  Serial.begin(115200);
    pinMode(pirSensorPin, INPUT);  // Set PIR sensor pin as input

      // Connect to Wi-Fi
        WiFi.begin(ssid, password);
          while (WiFi.status() != WL_CONNECTED) {
              delay(1000);
                  Serial.print(".");
                    }
                      Serial.println("Connected to WiFi");
                      }

                      void loop() {
                        bool currentMotionStatus = digitalRead(pirSensorPin) == HIGH;  // HIGH indicates motion detected

                          if (currentMotionStatus != motionDetected) {
                              motionDetected = currentMotionStatus;
                                  if (motionDetected) {
                                        sendTelegramNotification("Motion detected!");
                                            } else {
                                                  sendTelegramNotification("Motion stopped.");
                                                      }
                                                          delay(10000);  // Debounce delay
                                                            }
                                                            }

                                                            void sendTelegramNotification(String message) {
                                                              if (WiFi.status() == WL_CONNECTED) {
                                                                  HTTPClient http;
                                                                      String url = "https://api.telegram.org/bot" + telegramToken + "/sendMessage?chat_id=" + chatId + "&text=" + message;

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

                                                                                  if (httpCode > 0) {
                                                                                        String payload = http.getString();
                                                                                              Serial.println(payload);
                                                                                                  } else {
                                                                                                        Serial.println("Error on HTTP request");
                                                                                                            }

                                                                                                                http.end();
                                                                                                                  } else {
                                                                                                                      Serial.println("Error: Not connected to WiFi");
                                                                                                                        }
                                                                                                                        }