from machine import*
from time import*
rv=Pin(14,Pin.OUT)
o=Pin(12,Pin.OUT)
v=Pin(13,Pin.OUT)
rt=Pin(2,Pin.OUT)
b=Pin(15,Pin.OUT)
s=PWM(Pin(27,mode=Pin.OUT))
s.freq(50)
while True:
    s.duty(25)
    for i in range(3):
        v.on()
        sleep(1)
        v.off()
        for j in range(3):
            o.on()
            sleep(0.2)
            o.off()
            sleep(0.2)
        rv.on()
        sleep(1)
        rv.off()
    s.duty(75)
    for i in range(3):
        rt.on()
        b.off()
        sleep(1)
        rt.off()
        b.on()
        sleep(1)