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

const char* WIFI_NAME = "Wokwi-GUEST";
const char* WIFI_PASSWORD = "";
const int myChannelNumber =1942389 ;
const char* myApiKey = "4LA5HF66PO1NAF9B";
const char* server = "api.thingspeak.com";

int pirPin = 2; //pin sensor PIR pada arduino
int buzzerPin = 13;// ping buzzer pada arduino
int state = LOW; //awalnya LED mati
int val = 0; //nilai sensor

WiFiClient client;

void setup() {
  pinMode(pirPin, INPUT); //pin sensor PIR sebagai input
  pinMode(buzzerPin, OUTPUT); //pin buzzer sebagai output
  Serial.begin(115200); //baud rate serial
  //konek ke wifi
   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()));
  WiFi.mode(WIFI_STA);
  ThingSpeak.begin(client);
}

void loop() {
  val = digitalRead(pirPin); //membaca data dari sensor PIR
  ThingSpeak.setField(1,val);
  if (val == HIGH) { //jika sensor mendeteksi gerakan
    tone(buzzerPin,1000); //buzzer akan mengeluarkan suara dengan frekuensi 1000Hz
    if (state == LOW) {
      Serial.println("Gerakan terdeteksi!"); //tampilkan pesan pada serial monitor
      state = HIGH; 
    }
  } else {
    if (state == HIGH){
    noTone(buzzerPin);
      Serial.println("Gerakan menghilang"); //tampilkan pesan pada serial monitor
      state = LOW; 
    }
  }
  delay(10); //delay selama 10 ms
  ThingSpeak.writeFields(myChannelNumber,myApiKey);
}