from machine import Pin,PWM
led = PWM(Pin(7,Pin.OUT),freq=1000)
while True:
for i in range(1024):
led.duty(i)
for i in range(1023,0,-1):
led.duty(i)
from machine import Pin,PWM
led = PWM(Pin(7,Pin.OUT),freq=1000)
while True:
for i in range(1024):
led.duty(i)
for i in range(1023,0,-1):
led.duty(i)