from machine import Pin
import time

# Initialize an onboard LED (GPIO2 is often used on ESP32)
led = Pin(2, Pin.OUT)

while True:
    led.value(1)  # Turn on the LED
    time.sleep(1)  # Wait for 1 second
    led.value(0)  # Turn off the LED
    time.sleep(1)  # Wait for 1 second