#define BLYNK_TEMPLATE_ID "TMPL3_jMO6V4O"
#define BLYNK_TEMPLATE_NAME "Led"
#define BLYNK_AUTH_TOKEN "-8vOS7HsjEEYmHyJLKkiiLbzXyn02InO"

#include <WiFi.h>
#include <WiFiClient.h>
#include <BlynkSimpleEsp32.h>

char auth[] = BLYNK_AUTH_TOKEN;   // Blynk Auth Token
char ssid[] = "Wokwi-GUEST";      // Wi-Fi SSID
char pass[] = "";                 // Wi-Fi Password

const int ledPin = 5;             // Set to GPIO 5 or any pin you're using
bool ledState = false;            // Variable to store LED state
bool blinking = false;            // Blinking state flag
unsigned long previousMillis = 0; // Store the last time LED was updated
const long interval = 500;        // Interval for LED blink (500ms)

BLYNK_WRITE(V0) {
  int pinValue = param.asInt();   // Get value from virtual pin V0
    
      if (pinValue == 1) {            // If switch is ON
          blinking = true;              // Start blinking
            } else {                        // If switch is OFF
                blinking = false;             // Stop blinking
                    digitalWrite(ledPin, LOW);    // Turn off LED
                      }
                      }

                      void setup() {
                        Serial.begin(115200);           // Debug console
                          pinMode(ledPin, OUTPUT);        // Initialize LED pin as output
                            Blynk.begin(auth, ssid, pass);  // Connect to Blynk and Wi-Fi
                            }

                            void loop() {
                              Blynk.run();                    // Run Blynk

                                // Blink the LED when blinking is true
                                  if (blinking) {
                                      unsigned long currentMillis = millis();

                                          if (currentMillis - previousMillis >= interval) {
                                                previousMillis = currentMillis;
                                                      
                                                            // If the LED is off, turn it on, and vice versa
                                                                  ledState = !ledState;
                                                                        digitalWrite(ledPin, ledState);
                                                                            }
                                                                              }
                                                                              }