The CH552 is an enhanced E8051 core MCU compatible with the MCS51 instruction set. It’s great for your decoration because It’s super simple to include in your schematic and integrates really cleanly into your PCB because of it’s really small size.
The only WiFi enabled microcontroller out of the three, you can integrate a web app to control the lighting, and more. However, you have to compensate space on your PCB as it has a larger form factor.
It’s time for you to choose, which microcontroller do YOU want to use?
I choose the CH552
I choose the XIAO ESP32C3