from machine import Pin
import time

# Define the GPIO pin connected to the relay's IN pin
relay = Pin(2, Pin.OUT)  # Replace 10 with your actual GPIO number

while True:
    relay.value(1)  # Turn ON relay (usually closes the circuit)
    print("Relay ON")
    time.sleep(0.5)

    relay.value(0)  # Turn OFF relay (opens the circuit)
    print("Relay OFF")
    time.sleep(0.5)