from machine import I2C,Pin
from utime import sleep


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)

button = Pin(28, Pin.IN, Pin.PULL_UP)

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

speed = 1.0125

while True:
    if button.value() == 0:
        while True:
            if button.value() == 0:
                break
            for led in leds:
                led.toggle()
                sleep(speed)
                led.toggle()
                sleep(speed)
                if button.value() == 0:
                    speed -= 0.2
                    if speed < 0:
                        speed = 1.0125
                    break