#define BLYNK_PRINT Serial
#define BLYNK_TEMPLATE_ID "TMPL3x67oY-zf"
#define BLYNK_TEMPLATE_NAME "led control with ESP 32  practice set"
#define BLYNK_AUTH_TOKEN "yEe45btt8AyG2Ztq5ssLGTNdrJ9O-RcE"
#include<WiFi.h>
#include <BlynkSimpleEsp32.h>
char auth[] = BLYNK_AUTH_TOKEN;
char ssid[] = "Wokwi-GUEST";
char pass[] = "";

#define LED_PIN 16
#define SWITCH_PIN 4

int switchState = 0;

BLYNK_WRITE(V0) {
  switchState = param.asInt();
  if (switchState == 1) {
    digitalWrite(LED_PIN, HIGH);
    Serial.println("LED ON");
  } 
  else {
    digitalWrite(LED_PIN, LOW);
    Serial.println("LED OFF");
  }
}

void setup() {
  pinMode(LED_PIN, OUTPUT);
  pinMode(SWITCH_PIN, INPUT_PULLUP);
  Serial.begin(9600);
  Blynk.begin(auth, ssid, pass);
}

void loop() {
  Blynk.run();
   if (digitalRead(SWITCH_PIN) == LOW) {
    switchState = !switchState;
    if (switchState == 1) {
      Serial.println("LED ON");
      Blynk.virtualWrite(V1, HIGH);
    } else {
      Serial.println("LED OFF");
      Blynk.virtualWrite(V1, LOW);
    }
    while (digitalRead(SWITCH_PIN) == LOW) {
      delay(10);
    }
  }
}