from machine import Pin, PWM, Timer

pwm = PWM(Pin(23),freq=50)
led_1 = Pin(22, Pin.OUT)
led_2 = Pin(21, Pin.OUT)
led_3 = Pin(19, Pin.OUT)
led_4 = Pin(18, Pin.OUT)
led_5 = Pin(5, Pin.OUT)
led_6 = Pin(17, Pin.OUT)
push_1 = Pin(12,Pin.IN,Pin.PULL_UP)
push_2 = Pin(14,Pin.IN,Pin.PULL_UP)

def tim (x):
    global direccion, servo
    pwm.duty(servo)
    if direccion:
        servo = servo + 1
        if servo > 125:
            led_1.value(1)
            led_2.value(1)
            led_3.value(1)
            led_4.value(0)
            led_5.value(0)
            led_6.value(0)
            direccion = 0
    
    else:
        servo = servo - 1
        if servo < 25:
            led_4.value(1)
            led_5.value(1)
            led_6.value(1)
            led_1.value(0)
            led_2.value(0)
            led_3.value(0)
            direccion = 1

    t0.init(period = vel, mode = Timer.PERIODIC, callback = tim)

def interrupcion (y):
    global vel, t0
    if vel == 100:
        vel = 50
    else:
        vel = 100
    
    t0.init(period = vel, mode = Timer.PERIODIC, callback = tim)
    

def cambio (z):
    global direccion
    direccion = not direccion

direccion = 1
servo = 25
vel = 50

t0 = Timer (0)
t0.init(period = 100, mode = Timer.PERIODIC, callback = tim)
push_1.irq(trigger = Pin.IRQ_FALLING, handler = interrupcion)
push_2.irq(trigger = Pin.IRQ_FALLING, handler = cambio)

while(1):
    pass