import time
time.sleep(0.1) # Wait for USB to become ready
from machine import Pin as pin 

button_1 = pin(2, pin.IN, pin.PULL_UP)
button_2 = pin(3, pin.IN, pin.PULL_UP)
button_3 = pin(4, pin.IN, pin.PULL_UP)

led_1 = pin(16,pin.OUT)
led_2 = pin(17,pin.OUT)
led_3 = pin(18,pin.OUT)
led_4 = pin(19,pin.OUT)
led_5 = pin(20,pin.OUT)

while True:
    value_1 = button_1.value()
    value_2 = button_2.value()
    value_3 = button_3.value()
    if value_1 == 0:
        led_1.value(1)
        led_2.value(1)
        time.sleep(0.3)
        led_1.value(0)
        led_2.value(0)
        time.sleep(0.3)
    if value_2 == 0:
        led_1.value(1)
        led_3.value(1)
        led_4.value(1)
        time.sleep(0.3)
        led_1.value(0)
        led_3.value(0)
        led_4.value(0)
        time.sleep(0.3)
    if value_3 == 0:
        led_1.value(1)
        time.sleep(0.3)
        led_2.value(1)
        time.sleep(0.3)
        led_3.value(1)
        time.sleep(0.3)
        led_4.value(1)
        time.sleep(0.3)
        led_5.value(1)
        time.sleep(0.3)
        led_1.value(0)
        time.sleep(0.3)
        led_2.value(0)
        time.sleep(0.3)
        led_3.value(0)
        time.sleep(0.3)
        led_4.value(0)
        time.sleep(0.3)
        led_5.value(0)
        time.sleep(0.3)

    print(value_1)
    time.sleep(0.3)