Hello, I wanted to make an ambient backlight project for my monitor with programmable LED strips, but I've ran into a really irritating problem: Apparently the FastLED signal data is sent, but the LEDS dont light up unless I connect the ground probe of my (turned off) multimeter to the signal wire…

Weird WS2812B Problem

LarryD June 26, 2018, 10:27pm 12

You cannot arbitrarily connect things up the way you think it should be wired.

Follow this diagram.

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