from machine import Pin, PWM
import time

# posição dos pinos RGB
RED = 0
GREEN = 1
BLUE = 2

# pinos RGB selecionados
pwm_pins = [10, 11, 12]

pwm1 = PWM(Pin(pwm_pins[RED]))  # create a PWM object on a pin and set freq and duty
pwm2 = PWM(Pin(pwm_pins[GREEN]))  # create a PWM object on a pin and set freq and duty
pwm3 = PWM(Pin(pwm_pins[BLUE]))  # create a PWM object on a pin and set freq and duty

def init_freq_pwm():
    pwm1.freq(1000)
    pwm2.freq(1000)
    pwm3.freq(1000)

def deinit_pwm_pins():
    pwms[RED].deinit()
    pwms[GREEN].deinit()
    pwms[BLUE].deinit()

# main function
def main():
    print('pwm')
    while True:
        pwm1.duty_u16(32768)     # set duty to 50%
        pwm2.duty_u16(0)     # set duty to 50%
        pwm3.duty_u16(0)     # set duty to 50%
        time.sleep(1)

        pwm1.duty_u16(0)     # set duty to 50%
        pwm2.duty_u16(32768)     # set duty to 50%
        pwm3.duty_u16(0)     # set duty to 50%
        time.sleep(1)

        pwm1.duty_u16(0)     # set duty to 50%
        pwm2.duty_u16(0)     # set duty to 50%
        pwm3.duty_u16(32768)     # set duty to 50%
        time.sleep(1)
        
if __name__ == "__main__":
    init_freq_pwm()
    main()