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

#include <WiFi.h>
#include <HTTPClient.h>
const char* ssid = "Wokwi-GUEST";
const char* password = "";
const int myChannelNumber = 2504872;
const char* apiKey = "EF0ES2QEMTKHYKRX";
const char* server = "api.thingspeak.com";

const int pirPin = 19; // PIR sensor connected to GPIO 4

void setup() {
  Serial.begin(115200);
    pinMode(pirPin, INPUT);
      connectToWiFi();
      }

      void loop() {
        int pirValue = digitalRead(pirPin);
          
            if (pirValue == HIGH) {
                Serial.println("Motion detected!");
                    sendDataToThingSpeak(1); // Send 1 to ThingSpeak when motion is detected
                      } else {
                          Serial.println("No motion detected");
                              sendDataToThingSpeak(0); // Send 0 to ThingSpeak when no motion is detected
                                }

                                  delay(5000); // Wait for 5 seconds before checking the PIR sensor again
                                  }

                                  void connectToWiFi() {
                                    Serial.println("Connecting to WiFi...");
                                      WiFi.begin(ssid, password);

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

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

                                                    void sendDataToThingSpeak(int motion) {
                                                      if ((WiFi.status() == WL_CONNECTED)) {
                                                          HTTPClient http;
                                                              String url = "http://" + String(server) + "/update?api_key=" + apiKey + "&field1=" + 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();
                                                                                                                                } else {
                                                                                                                                    Serial.println("WiFi Disconnected");
                                                                                                                                      }
                                                                                                                                      }