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MAX7219点阵资料包,超详细，用这个芯片的赶紧下载，驱动数码管，驱动LED点阵程序，测试正常。-MAX7219 dot matrix data packets, ultra detailed, with the chip to quickly download, drive the digital tube, drive LED dot matrix program, test normal.

MAX7219数码管驱动芯片资料，包含详细的源程序和PDF资料(MAX7219 digital tube driver chip data, including detailed source and PDF data)