I reworked my project to use the addressable led tape (4 segments of three crystals) ws2812b and the d1 mini esp8266 module. Also, during printing, you need to insert a microusb module with soldered wires into the base - for this I added two gcode files - one with the M601 pause - but for some reason I had glitches with this and I cut the second file with the code M600 - color change, which I also added.
Also added two test gcodes so you can check first if your pause works and also to check if your microusb module fits.
List of modules I used:
1. D1 mini esp8266
2. ws2812 tape
3. Micro USB Dip
I installed the firmware from the wled install page through the web interface.
I added the connection diagram to the photos
If you have any questions, please ask
The author remixed this model.
redesigned to use microUSB, ws2812 led strip and 8266 board