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

int ledPin = 12;            
int inputPin = 14;               
int pirState = LOW;     
int val = 0;  
int status = 0;

char ssid[] = "Wokwi-GUEST";
char pass[] = "";
WiFiClient client;
unsigned long myChannelNumber = 2096729;
const char*myWriteAPIKey = "1X249GEKN2P2XOSE"; 
int statusCode;

void setup() {
  pinMode(ledPin, OUTPUT);     
  pinMode(inputPin, INPUT);   
  Serial.begin(9600);

  ThingSpeak.begin(client);
  WiFi.mode(WIFI_STA);
}

void loop() {
  if(WiFi.status() != WL_CONNECTED){
    Serial.print("Attempting to connect");
    while(WiFi.status() != WL_CONNECTED){
      WiFi.begin(ssid,pass);
      Serial.print(".");
      delay(5000);
    }
    Serial.println("\nconnected.");
  }

  val = digitalRead(inputPin);  
  if (val == HIGH) {           
    analogWrite(ledPin,255);  
    if (pirState == LOW) {
      Serial.println("Motion detected!");
      status = 1;
      pirState = HIGH;
    }
  } else {
    analogWrite(ledPin,1);
    if (pirState == HIGH) {
      Serial.println("Motion ended!");
      status = 0;
      pirState = LOW;
    }
  }
  ThingSpeak.setField(1,String(status));
  statusCode = ThingSpeak.writeFields(myChannelNumber,myWriteAPIKey);
  if(statusCode == 200){
    Serial.println("channel updated");
  } else {
    Serial.println("problem in updating");
    String(statusCode);
  }
  delay(10000);
}