Meet the RGB Matrix FeatherWing from Adafruit: a handy kit that lets you create amazing projects with 16 or 32-pixel LED matrices. You have two ways to assemble this. The FeatherWing lets you simply plug a 5V DC power pack.
More gadgets like this: here
The FeatherWing PCB works with 16×32, 32×32 or 64×32 RGB matrices. You can find out more about it here.
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