# Connect:
# Red to GPIO pin 26
# Green to GPIO pin 27
# Blue to GPIO pin 28
#
# Code example from:
# https://docs.sunfounder.com/projects/umsk/en/latest/04_pi_pico/pico_lesson28_rgb_module.html

from machine import Pin, PWM
from time import sleep

# Initialize PWM for each color channel of an RGB LED
red = PWM(Pin(26))  # Red channel on GPIO pin 26
green = PWM(Pin(27))  # Green channel on GPIO pin 27
blue = PWM(Pin(28))  # Blue channel on GPIO pin 28

# Set 1000 Hz frequency for all channels
red.freq(1000)
green.freq(1000)
blue.freq(1000)

# Function to set RGB LED color
def set_color(r, g, b):
    red.duty_u16(r)  # Red intensity
    green.duty_u16(g)  # Green intensity
    blue.duty_u16(b)  # Blue intensity

try:
    while True:
        set_color(65535, 0, 0)  # Red
        sleep(1)
        set_color(0, 65535, 0)  # Green
        sleep(1)
        set_color(0, 0, 65535)  # Blue
        sleep(1)
except KeyboardInterrupt:
    set_color(0, 0, 0)  # Turn off RGB LED on interrupt