Maybe I will do that. I was considering it before when I was working on it but since I'm not using a simple hardware setup of just an Arduino and some addressable LEDs, figured it would be a pain for other people to try to help. My setup currently consists of the following: (1) Arduino Mega, (1) Arduino Nano, (126) WS2812B addressable LEDs, (1) Bluetooth module, (1) SD card reader and (1) A4988 motor driver board.
I did manage to get Bluetooth functionality and the various LED presets working on one board, initially. I found a writeup on the Aruduino forums regarding non-blocking serial input reading that allowed me to do that. I'm actually using the Nano in my current setup for motor control and that's it. I was originally planning on using 2 Nanos, but eventually the code for the LEDs grew too large for the storage space on the Nano and that's why I bumped up to the Mega. Even though I'm only using the Nano for motor control, I still have the two Arduinos linked together as the Bluetooth aspect off all of this is on the Mega and I want to be able to control the motor.
I'm doing this for a gift that I'm making. I started working with stained glass a few years ago and one thing that I've been wanting to do from the start is combine stained glass with lights to make unique items. I found out about Arduinos a few years ago and have dabbled with them a bit. I realized that I could make some really cool things with them. Currently working on a lantern with a Tardis inside from Dr. Who. The Tardis is mounted on a carbon fiber pole, attached to a stepper motor. There are 126 LEDs sprinkled throughout, some of them inside the Tardis. I've completely made this entire thing, the lantern is made out of oak, I made the stained glass panels in the front and figured out various challenges on the electronics side, like how to supply power to a rotating object......
Well, I'm going to stop typing now. Didn't mean to hijack your thread, sometimes I explain things in a bit too much detail.