Product Name:4 pcs MAX7219 Dot Matrix Module Control Display Module DIY kit CascadeThis Matrix isdesigned by our own own R & D development.It is an UPGRADED product of this item:#251170570992This picture below is the board of R & D development Effect displayed perfectly by 12 pcs of the Matrixs.If more pcs, there will be more great pictures displayed.If buy 4pcs, the effect will display below:Video play below:If buy 12pcs, the effect will display below:Material Download here below!This vedio shows how to weld the SMD:
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