Finally finished with the encoder board, here are some pictures:

Here is a video of going thru the RED, GREEN, BLUE, and WHITE settings for SK6812  LED array:

getting the retro matrix displays working with the new encoder pcb, whew! what a job! ok, back to the new matrix display pcb with 0202 leds !

The new encoder pcb has a lot of I/O available!

Here is the completed code and hardware updates to use for controlling stuff:

https://youtu.be/2L4WUc_I4tE

Here is a video of the encoder pcb with seven WS2812B LEDs :

using FOUR matrix displays:

Code on github --->   https://github.com/haroldmoore/RotoMan

:-)

More variations on a theme.....

https://youtu.be/gSa6miSHEVk