Description: MAX7219 Microcontroller 4-in-1 Display Dot Matrix 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!

Feature:

1. A single module can drive a total of 8 * 8 dot matrix overcast

2. Working voltage: 5V

3. Size: *12.8 cm*3.2 cm *1.3 cm (L*W*H)

4. With 64 fixing screw holes, diameter 3mm

5. module with input and output interfaces, support for cascading multiple modules

Wiring instructions:

1. The left side of the module as an input port, an output port on the right.

2. If a single control module, simply input port connected to CPU

3. cascading multiple modules, input and output termination CPU, input the output end of the second module of the first module, the first two modules of the first three input termination module, and so on. ..

Pin Connection:

Dot LED Module to the Arduino

Vcc – 5VGND – GNDDIN – Pin 12CS – Pin 10CLK – Pin 11

Documents:

MAX-7219

How to use DOT LED Matrix Module with Arduino

Package Included:

1 x MAX7219 Microcontroller 4-in-1 Display Dot Matrix Module

• A single module can drive a 8x8 dot matrix common cathode.
• Fixing screws with 64 holes with a diameter 3mm.
• Module with input and output interfaces support for cascading multiple modules.
• The left side of the module to the input port the right to an output port
• When the control of a single module simply input port connected to CPU
• When a plurality of cascaded modules input and output termination CPU an input terminal of the second
• output end of the first module a module the first two modules of the input terminal of the three termination modules and so on.
• Driver Chip:MAX7219
• Input Voltage: 3.7 to 5.3 V
• Input Current: 320 mA
• Display Dimensions: 32x32x6 (LxWxH) mm
• PCD Dimensions: 128×32 (LxW) mm
• Package Includes : 1 x 4-in-1 Dot LED Matrix Module, 1 x Connecting Wire
• #multi plug