Pulses the Serpente's single RGB LED through various colours

SerpentePulse.py

import time
import board
import pulseio

ledr = pulseio.PWMOut(board.LED_R, frequency=5000, duty_cycle=0)
ledg = pulseio.PWMOut(board.LED_G, frequency=5000, duty_cycle=0)
ledb = pulseio.PWMOut(board.LED_B, frequency=5000, duty_cycle=0)
leds=[ ledr, ledg, ledb ]

while True:
    for led in leds:
        for i in range(100):
            # PWM LED up and down
            if i < 50:
                led.duty_cycle = int(i * 2 * 65535 / 100)  # Up
            else:
                led.duty_cycle = 65535 - int((i - 50) * 2 * 65535 / 100)  # Down
            time.sleep(0.01)
        led.duty_cycle=65535

Refreshed for a better cycle