from machine import Pin
from time import sleep

led1 = Pin(2, Pin.OUT)
led2 = Pin(4, Pin.OUT)
led3 = Pin(5, Pin.OUT)
led4 = Pin(18, Pin.OUT)
led5 = Pin(19, Pin.OUT)
led6 = Pin(21, Pin.OUT)
led7 = Pin(22, Pin.OUT)
led8 = Pin(23, Pin.OUT)

button_on = Pin(12, Pin.IN, Pin.PULL_UP)
button_off = Pin(14, Pin.IN, Pin.PULL_UP)

count = 0

while True:
    if button_on.value() == 0:
        if count < 8:
            count += 1
            if count >= 1:
                led1.value(1)
            if count >= 2:
                led2.value(1)
            if count >= 3:
                led3.value(1)
            if count >= 4:
                led4.value(1)
            if count >= 5:
                led5.value(1)
            if count >= 6:
                led6.value(1)
            if count >= 7:
                led7.value(1)
            if count >= 8:
                led8.value(1)
            sleep(0.3)

    if button_off.value() == 0:
        if count > 0:
            if count == 1:
                led1.value(0)
            if count == 2:
                led2.value(0)
            if count == 3:
                led3.value(0)
            if count == 4:
                led4.value(0)
            if count == 5:
                led5.value(0)
            if count == 6:
                led6.value(0)
            if count == 7:
                led7.value(0)
            if count == 8:
                led8.value(0)
            count -= 1
            sleep(0.3)