from machine import Pin,PWM
import time,random
led_r = PWM(Pin(21),freq=900,duty=1)
led_g = PWM(Pin(19),freq=900,duty=1)
led_b = PWM(Pin(18),freq=900,duty=1)
key = Pin(27,Pin.IN,Pin.PULL_UP)
j=int(input("请输入一个数："))
# while key.value()==0
# j=random.randint(1,300)
# running = false
# while not running:
if j%8==0:
    for i in range(1024):
        led_r.duty(i)
        time.sleep_ms(1)
    for i in range(1023,-1,-1):
        led_r.duty(i)
        time.sleep_ms(1)
elif j%8==1:
    for i in range(1024):
        led_g.duty(i)
        time.sleep_ms(1)
    for i in range(1023,-1,-1):
        led_g.duty(i)
        time.sleep_ms(1)
elif j%8==2:
    for i in range(1024):
        led_b.duty(i)
        time.sleep_ms(1)
    for i in range(1023,-1,-1):
        led_b.duty(i)
        time.sleep_ms(1)
elif j%8==3:
    for i in range(1024):
        led_r.duty(i)
        led_g.duty(i)
        led_b.duty(i)
        time.sleep_ms(1)
    for i in range(1023,-1,-1):
        led_r.duty(i)
        led_g.duty(i)
        time.sleep_ms(1)
elif j%8==4:
    for i in range(1024):
        led_r.duty(i)
        led_b.duty(i)
        time.sleep_ms(1)
    for i in range(1023,-1,-1):
        led_r.duty(i)
        led_b.duty(i)
        time.sleep_ms(1)
elif j%8==5:
    for i in range(1024):
        led_g.duty(i)
        led_b.duty(i)
        time.sleep_ms(1)
    for i in range(1023,-1,-1):
        led_g.duty(i)
        led_b.duty(i)
        time.sleep_ms(1)
elif j%8==6:
    for i in range(1024):
        led_r.duty(i)
        led_g.duty(i)
        led_b.duty(i)
        time.sleep_ms(1)
    for i in range(1023,-1,-1):
        led_r.duty(i)
        led_g.duty(i)
        led_b.duty(i)
        time.sleep_ms(1)
else:
    pass
        #ocr
        #opencv
        # led_r.duty(i)
        # led_g.duty(i)
        # led_b.duty(i)
        #
    # for i in range(1024):
        # led_r.duty(i)
        # led_g.duty(i)
        # led_b.duty(i)
    #     time.sleep_ms(1)
    # for i in range(1023,-1,-1):
        # led_r.duty(i)
        # led_g.duty(i)
        # led_b.duty(i)
    #     time.sleep_ms(1)