"""
Simple rgb color fade tested with the monoprice rgbawuv 

Requires python3.7 for the async coroutine syntax; should be trivial to backport though

Requires:
    libusb==1.0.22b4
    numpy==1.16.3
    pyusb==1.0.2
    scikit-image==0.15.0
    udmx-pyusb==2.0.0
"""

import asyncio
from pyudmx import pyudmx
from skimage import color

async def make_colors():
    for idx in range(20):
        for hue in range(0, 255, 1):
            yield color.hsv2rgb([[[hue/255., 1., 1.]]])[0][0]
            await asyncio.sleep(0.02)

async def main():
    device = pyudmx.uDMXDevice()
    if not device.open():
        raise RuntimeError("didn't open device")

    async for rgb in make_colors():
        dmxvals = [int(255 * val) for val in rgb] + [0] * 8
        print(f'sending {dmxvals}')
        device.send_multi_value(channel=1, values=dmxvals)

asyncio.run(main())