Tell us about yourself!
I suppose, you need to supply power to arduino seperately?
Did you try ESP01s and ws2812b?
I am afraid following this tutorial can simply damage all my components isn't? the step 3 shows sleep and reset are connected to each other. whereas step 2 tells to supply 5 volts. So contradictory statements in 1line - "Connect the parts as shown in the picture. please ignore the SLEEP and the RESET pin". Strange.
Did anyone made it? Using raspberry pi is a overkill isn't? nema 17 + pi + wemos + gears + ..
Don't understand why you need to make an article of no use like this by, missing fundamentals like paper size, resolution etc.