Hello Ray, I’ve never tried it before, but as you’ve mentioned you’ll need to use ULAB in MicroPython:

• https://github.com/v923z/micropython-ulab

You’ll need to use this firmware in your board: https://github.com/v923z/micropython-ulab/releases

But I’ve never used it before, so I don’t have any experience with it…

Thanks Rui! The firmware is for a Pyboard.  I wonder if it will work with the esp32?

I wonder how heavy is it on the esp32 and would it be useful with rgb light strips.
 

I’m not sure… It might work, but have some compatibility issue. I would just go ahead and try to see if it runs the firmware…