import time
from machine import Pin
from machine import PWM
time.sleep(0.1) # Wait for USB to become ready

print("Hello, Pi Pico!")

pwm0= PWM(Pin(0), freq=2000, duty_u16=32768)


while True:
    for pwm in range(65535):
        pwm0.duty_u16(pwm)
        time.sleep_us(100)
    for pwm in range(65535):
        pwm0.duty_u16(65535-pwm)
        time.sleep_us(100)
        print(pwm)
        pwm0.deinit()
    time.sleep(10)