from machine import Pin, PWM
from time import sleep

# Initialize the pin that will be used for PWM
pwm_pin = Pin(15)  

# Set up PWM on the selected pin using the LEDC module
pwm = PWM(pwm_pin)

# Set the PWM frequency and resolution (number of bits)
pwm.freq(5000)  # Set frequency to 5kHz
pwm.duty(1023)   # Set duty cycle to 100% using 10-bit resolution (1024 steps)
sleep(2)
# Change the duty cycle to control the width of the pulse
pwm.duty(768)
sleep(2)
pwm.duty(512)   # Set duty cycle to 50% using 10-bit resolution (1024 steps)
sleep(2)
pwm.duty(256)  # Set duty cycle to 25%
sleep(2)
pwm.duty(0)  # Set duty cycle to 0%