import time
from machine import Pin

# Define the relay control pin (Change GPIO pin as necessary)
RELAY_PIN = Pin(27, Pin.OUT)  # GPIO 27 connected to relay module

# Function to turn the relay ON
def turn_on_relay():
    RELAY_PIN.value(1)  # Turn ON the relay (allow current to flow to the connected device)
    print("Relay is ON.")

# Function to turn the relay OFF
def turn_off_relay():
    RELAY_PIN.value(0)  # Turn OFF the relay (stop current to the connected device)
    print("Relay is OFF.")

# Main loop
def main():
    while True:
        # For demonstration, turn the relay on and off every 5 seconds
        turn_on_relay()   # Turn ON the relay
        time.sleep(2)     # Wait for 5 seconds
        turn_off_relay()  # Turn OFF the relay
        time.sleep(2)     # Wait for 5 seconds

# Run the main loop
main()