from machine import Pin
from time import sleep_ms

leds = [
    Pin(22, Pin.OUT),
    Pin(21, Pin.OUT),
    Pin(19, Pin.OUT),
    Pin(18, Pin.OUT),
    Pin(5, Pin.OUT),
    Pin(17, Pin.OUT),
    Pin(16, Pin.OUT),
    Pin(4, Pin.OUT),
    Pin(2, Pin.OUT),
    Pin(15, Pin.OUT)
    ]

y = 0
z = 100

som = Pin(14, Pin.OUT)

while True:
    for x in range (10-y):
        leds[x].value(1)
        sleep_ms(z)
    x = 10
    for x in reversed(range (10-y)):
        leds[x].value(0)
        sleep_ms(z)
    y+=1
    z-=9
    if y == 10:
        y = 0
        z = 100