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This is a 8x8 WS2812b NeoPixel LED matrix that is completely flat surface and has the same 1.6mm height as a normal PCB.

I always had this idea of what would have happened if we can put the components inside the PCB? Let’s find out!

This is the world’s slimmest addressable RGB LED matrix that can be made with 5050 WS2812b NeoPixel LEDs. Why? Because on this PCB the LEDs are not actually on top of the PCB, rather it’s inside the PCB.”

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