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#   UPTV       Fecha:                           #
#   Nombre Y apellido:                          #
#   C.I.:                                       #
#   Seccion:                                    #
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from time import sleep
from machine import Pin, ADC, PWM
from math import sin, pi

# Ajusta este valor para establecer el BPM (Beats Per Minute)
BPM = 660

# Calcula el intervalo de tiempo en segundos por beat
intervalo_beat = 60 / BPM

potentiometro = ADC(26)

led0 = Pin(2, Pin.OUT)
led1 = Pin(3, Pin.OUT)
led2 = Pin(4, Pin.OUT)
led3 = Pin(5, Pin.OUT)
led4 = Pin(6, Pin.OUT)
led5 = Pin(7, Pin.OUT)
led6 = Pin(8, Pin.OUT)
led7 = Pin(9, Pin.OUT)

leds = (led0, led1, led2, led3, led4, led5, led6, led7)


def retardo(pos):
    valor = intervalo_beat * potentiometro.read_u16() / 65535
    return intervalo_beat - valor 


while True:
    for i in range(0, 8):
        leds[i].value(True)
        sleep(retardo(i))
        leds[i].value(False)
    for i in range(7, -1, -1):
        leds[i].value(True)
        sleep(retardo(i))
        leds[i].value(False)