from machine import Pin
from time import sleep

# Define the LED pins in reverse order (10 to 1)
led_pins = range(10, 0, -1)  # Pins 10 to 1

while True:
    # Blink LEDs one by one, from pin 10 to pin 1
    for pin in led_pins:
        led = Pin(pin, Pin.OUT)  # Create Pin object for the selected pin
        led.value(1)  # Turn on the LED
        sleep(0.2)  # Delay for 0.5 seconds before turning it off
        led.value(0)  # Turn off the LED
        sleep(0.1)  # Small delay before the next LED lights up