Problem: I have killed 3 microbits by using Neopixels - These are just the cheap ones from eBay.
It starts off fine. I have programmed the Neopixels to work with PXT editor, until I unplug the USB supply from my laptop. After that the Microbit is just dead. The yellow light at the back (comes on when you plug into USB) doesn't come on anymore. They are declared dead.
With the 3rd one, I have turned the brightness down to 100. I was only using an 8-Neopixels so can't be drawing much current.
I wonder if anyone else have the same experience. And let me know if there is anyway to save them.