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Using a Flora Neopixel v2 - now my USB device is not recognized?!? Answered

I couldn't find a plain sewable LED, so I ordered a Flora Neopixel v2. It has a +, a -, an IN, and an OUT pad. I put the Lillypad ground on -, the pin 3 on the IN, and the LillyPad + to the Neopixel +. It worked once or twice on the Fade sketch, but now it has stopped. My PC says that "the last USB device I connected could not be recognized", even after rebooting everything. Even disconnecting the NeoPixel and trying to run Blink on the LillyPad's built-in LED gives the same message. Can anyone help? Please?