I designed WS2812B LED 3x3 matrix on Arduino PCB board, when plug USB power to Arduino, all WS2812B LED light up automatically, I don't want LEDs light up automatically, does anyone has suggestion? thanks

WS2812B 3x3 matrix on Arduino PCB board

Grumpy_Mike April 12, 2018, 10:47pm 2

Post your code and your schematic. Do not use Fritzing.

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