#SC_06_buzzer_pwm.py
from machine import Pin, PWM
import time

buzzer_pwm = PWM(Pin(17))

'''
def buzzer_pwm_sound(freq, duty, duration_s):
    buzzer_pwm.freq(freq)
    buzzer_pwm.duty(duty)
    time.sleep(duration_s)
'''
while True:
    buzzer_pwm.freq(1000)
    buzzer_pwm.duty(50)
    time.sleep(1)

    buzzer_pwm.freq(1500)
    buzzer_pwm.duty(50)
    time.sleep(1)
    
    '''
    buzzer_pwm_sound(1000, 20, 1)
    buzzer_pwm_sound(1500, 20, 1)
    '''