pico_dutycycle_pulse

#!/usr/bin/env python3
# Filename: pico_dutycycle_pulse.py
# Author: Jeoi Reqi
# Pulse and Fade the LED on a Raspberry Pi Pico Microcontroller running Adafruit Circuit Python & Asyncio using Duty Cycle.

from time import sleep
from board import *
import pwmio
import asyncio
import microcontroller

led = pwmio.PWMOut(LED, frequency=5000, duty_cycle=0)

def led_pwm_up(led):
    for i in range(100):
        # PWM LED up and down
        if i < 50:
            led.duty_cycle = int(i * 2 * 65535 / 100)  # Up
        sleep(0.001)

def led_pwm_down(led):
    for i in range(101):
        # PWM LED up and down
        if i >= 50:
            led.duty_cycle = 65535 - int((i - 50) * 2 * 65535 / 100)  # Down
        sleep(0.002)

async def pulse_pico_led(led):
    print("\n\t~Starting Duty Cycle Test With LED Pulse~\n")
    led_state = True
    counter = 0
    result_count = 0
    while True:
        if led_state:
            print("\n\n\tFading LED On:\n\n")
            for i in range(101):
                brightness_pct = i
                duty_cycle = int(i * 65535 / 100)
                led.duty_cycle = duty_cycle
                await asyncio.sleep(0.025)
                print("{:6d}".format(led.duty_cycle), end="")
                result_count += 1
                if result_count >= 12:
                    print("\n")
                    result_count = 0
            led_state = False
        else:
            print("\n\n\n\tFading LED Off:\n\n")
            for i in range(100, -1, -1):
                brightness_pct = i
                duty_cycle = int(i * 65535 / 100)
                led.duty_cycle = duty_cycle
                await asyncio.sleep(0.025)
                print("{:6d}".format(led.duty_cycle), end="")
                result_count += 1
                if result_count >= 12:
                    print("\n")
                    result_count = 0
            led_state = True
        counter += 1
        if counter >= 2:
            print("\n\n\t\t\t\t\t\t\t\t   Done!")
            led.duty_cycle = 0
            break
        await asyncio.sleep(0)

asyncio.run(pulse_pico_led(led))