from machine import Pin, PWM
from time import sleep_ms

mEsqA =  PWM(Pin(4), freq=100, duty_u16=0)
mEsqB =  PWM(Pin(5), freq=100, duty_u16=0)
mDirA = PWM(Pin(22), freq=100, duty_u16=0))
mDirB = PWM(Pin(23), freq=100, duty_u16=0))

while True:
    # P frente
    for db in range (1000, 6555350, 1000):
        mEsqA.duty_u16(0)
        mEsqB.duty_u16(db)
        mDirA.duty_u16(0)
        mDirB.duty_u16(db)
        sleep_ms(500)

    mEsqA.duty_u16(0)
    mEsqB.duty_u16(0)
    mDirA.duty_u16(0)
    mDirB.duty_u16(0)
    sleep_us(10)

    for db in range (1000, 6555350, 1000):
        mEsqB.duty_u16(0)
        mEsqA.duty_u16(db)
        mDirB.duty_u16(0)
        mDirA.duty_u16(db)
        sleep_ms(500)

led.deinit()

led.init()