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TM1640 3mm LED matrix module for dual 1088BS common cathode 8x8 3mm LED display.
For Arduino library see github.com/maxint-rd/TM16xx
Schematic/PCB: https://easyeda.com/Maxint/tm1640-3mm-led-matrix-module
Watch this video to see how the module was made and tested: