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The generated hexadecimal code(0x00, 0x66, 0x00, 0x00, 0x18, 0x42, 0x3c,
0x00) is what we display, and save it.
(6) Connection Diagram
Note: The pin G, V, SDA and SCL of dot matrix module are separately
connected to G, 5V, A4 and A5 of motor drive shield. Plug power to BAT
148
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