control the led wearing blynk easily

#include <ESP8266WiFi.h>
#include <BlynkSimpleEsp8266.h>
#include <Servo.h>

#define BLYNK_PRINT Serial

Servo servo;
char auth[] = "xxxxxxxxxxxxxxxx";
char ssid[] = "xxxxxxxxx";
char pswd[] = "xxxxxxxxx";
void setup() {
 Serial.begin(9600);
 Blynk.begin(auth,ssid,pswd);
 servo.attach(5); //D4
}
void loop() {
 Blynk.run();
}
BLYNK_WRITE(V1) {
 servo.write(param.asInt());
}