Hello,
I was wondering which of my WS2812 based devices use genuine chips. I got most of them from Aliexpress, so I expect some fakes. I put all of them under the microscope and had a look. I was a bit surprised, that all of them were different from each other.
Does anybody know which one (if any) is the genuine WS2812, which ones are cheap fakes and which might be SK6812?
I read that the really cheap copies use aluminum bond wires which are much less reliable. Judging from the color of the bond wires I believe one of them has this kind.