#define BLYNK_TEMPLATE_ID "TMPL3IENBaA5m"
#define BLYNK_TEMPLATE_NAME "led"
#define BLYNK_AUTH_TOKEN "RNIhny7iz4r97CT2UF3L994CLv2PVSQI"
#define BLYNK_PRINT Serial

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

char auth[] = BLYNK_AUTH_TOKEN;
char ssid[] = "Wokwi-GUEST";
char pass[] = "";

void setup()
{
  Serial.begin(9600);
  Blynk.begin(auth, ssid, pass);
  
  pinMode(21, OUTPUT);
  pinMode(12, INPUT_PULLUP);
}

void loop()
{
  

  digitalWrite(21, HIGH);
  Blynk.virtualWrite(V0, 1);
  
  delay(1000);
  Blynk.virtualWrite(V0, 0);
  digitalWrite(21, LOW);
 
  
  delay(1000);
  Blynk.run();
}