# DC motor control with PWM

from machine import Pin, PWM
import time

pwm_pin=PWM(Pin(25))
freq=pwm_pin.freq()
print(freq)

pwm_pin.freq(2000)
freq1=pwm_pin.freq()
print(freq1)

while True:
    for x in range(1023,-3,-1):
     pwm_pin.duty()
     time.sleep_us(50)
     print(x)
     time.sleep(1)

    for y in range(0,1023,1):
     pwm_pin.duty()
     time.sleep_us(50)
     print(y)
     time.sleep(1)