import machine import *
import utime import sleep_ms

led1=PWM(Pin(1))
led2=PWM(Pin(2))

led1.freq(1000)
led2.freq(1000)

for brightness in range(0,65535,100):
    led1.duty_u16(brightness)
    sleep_ms(10)
    led2.duty_u16(brightness)
    sleep_ms(10)

led.duty_u16(0)
led2.duty_u16(0)

main.py

diagram.json

import machine import*
import utime sleep_ms

led1=PWM(Pin(1))
led2=PWM(Pin(2))
led1.freq(1000)
led2.freq(1000)

for brightness in range(0,65535,50):
    led1.duty_u16(brightness)
    utime.sleep_ms(10)
    led2.duty_u16(brightness)
    utime.sleep_ms(10)

    led.duty_u16(0)
    led1.duty_u16(0)