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MAX7219 Dot Matrix Module 4-in-1 LED Display Module


MAX7219 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. Thereon including a B-type BCD encoder chip, multi-channel scanning loop segment word driver, but also a static RAM 8 * 8 for storing each data. Only one external register is used to set the segment current of each LED.
A convenient four-wire serial interface can be connected to all general-purpose microprocessor. Each data can be addressed in the update do not need to rewrite all of the display. MAX7219 also allows each user to select a data coding or non-coding.
The entire device contains a 150μA low-power shutdown mode, analog and digital brightness control, a scan-limit register allows the user to display data bits 1-8, and one for all LED luminescence detection mode.
It requires only three IO ports to drive a dot matrix! No flicker when the dot matrix display! Support cascading!

Technical Specifications:

  • Requires only 3 communication wires of MCU
  • Cascading multiple Matrix LED Module is very easy
  • Size of the display is very compact
  • The PCB features M3 holes for mounting.
  • A single module can drive an 8 * 8 common cathode lattice

Package Includes:

  • 1 Piece –MAX7219 Dot Matrix Module 4-in-1 LED Display Module
  • 1 Piece –Female to female Jumper wire
Weight 50 g


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SKU: ERDSP003 Category: Tag: