from gpiozero import LED
import BlynkLib
import time

led1 = LED(25)

BLYNK_AUTH = 'YourAuthToken'

# Initialize Blynk
blynk = BlynkLib.Blynk(BLYNK_AUTH)

# Register Virtual Pins
@blynk.VIRTUAL_WRITE(1)
def my_write_handler(value):
  print('Current V1 value: {}'.format(value))
  if int(value) == 1:
    led1.on()
  else:
    led1.off()

# Start Blynk (this call should never return)
blynk.run()