from machine import Pin
import utime

# Define the onboard LED pin
led_pin = Pin(25, Pin.OUT)

# Function to control the LED
def control_led():
    led_pin.value(1)  # Turn on the LED
    utime.sleep(2)    # Wait for 2 seconds
    led_pin.value(0)  # Turn off the LED
    utime.sleep(1)    # Wait for 1 second

# Main loop
while True:
    control_led()