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const int led_red = 13;

pinMode(led_red, OUTPUT);


void handleRoot() {
  digitalWrite(led, 1);
  server.send(200, "text/plain", "hello from esp8266!");
  digitalWrite(led, 0);
}

 server.on("/LED1", [](){
    server.send(200, "text/plain", "LED is ON");
    digitalWrite(led, 1);
  });

  server.on("/LED0", [](){
    server.send(200, "text/plain", "LED is OFF");
    digitalWrite(led, 0);
  });