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network status
3pcs Line tracking module
Since this kit could be programmed by "Arduino Code" we may say that's it is suitable for 9+ years old kids
3- Arduino compatible
Supply voltage: 3
MAX7219 Dot Matrix Module Microcontroller Module 4 in 1 Display network statusThis MAX7219 Microcontroller 4 in 1 Display Dot Matrix Module is an integrated serial input output common cathode display driver, it connects the microprocessor 7 segment digital LED display with 8 digits, you can also connect a bar graph display or 64 independent LED. Including a B type BCD encoder chip, multi channel scanning loop segment word driver, but also a static RAM 8 x 8 for storing each data. Only one external register is used to set the
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