from machine import Pin
from utime import sleep
import random

led1 = Pin(1, Pin.OUT)
led2 = Pin(2, Pin.OUT)
led3 = Pin(3, Pin.OUT)
led4 = Pin(4, Pin.OUT)
led5 = Pin(5, Pin.OUT)
led6 = Pin(6, Pin.OUT)
led7 = Pin(7, Pin.OUT)
led8 = Pin(8, Pin.OUT)
led9 = Pin(9, Pin.OUT)
led10 = Pin(10, Pin.OUT)

leds = (led1, led2, led3, led4, led5, led6, led7, led8, led9, led10)

while True:
        random_led = random.choice(leds)
        random_led.on()
        sleep(0.2)
        random_led.off()
        sleep(0.2)