Description
As said in the title, changing the color of the DostStar single pixel only works if the board boots (even just soft reboot) when the board is plugged to a USB host. As long as a power source remains, the USB can then be unplugged, the DotStar will behave as expected, until the next power on of the board
However, when booting from battery, while there is no crash, the DotStar do not react at all and remains lit off. Only crashes and other various error codes will still activate correctly the DotStar.
I don't think this is related to the mentioned issue, but I mention it just in case : I updated the bios and circuitPython just before testing for the first time your module. And I noticed a change in the DotStar behavior : before the update, the DotStar remained lit with a light green signifying it's running state. Now it remains off. Must be for energy saving reason.