#define BLYNK_PRINT Serial
#include <ESP8266WiFi.h>
#include <BlynkSimpleEsp8266.h>
#include <Servo.h>

Servo servo;

char auth[] = "OuTpfVOV-IxSSHmVKAX-KGnHdl6qXvsL";
char ssid[] = "A Link to the Past";
char pass[] = "Regina696";
void setup()
{

  Serial.begin(9600);
  Blynk.begin(auth, ssid, pass);
  servo.attach(15); // NodeMCU D8 pin 
 }

void loop()
{
  Blynk.run();
}
BLYNK_WRITE(V1)
{
   servo.write(param.asInt());
}
BLYNK_WRITE(V2)
{
  servo.write(45);
}
BLYNK_WRITE(V3)
{
  servo.write(90);
}
BLYNK_WRITE(V4)
{
  servo.write(135);
}