LED Matrix with driver MAX7219

8×8 Dot Matrix LED Display Module MAX7219

The mini 8×8 Dot Matrix LED Display Module MAX7219 is based on the compact MAX7219 chip, it is a serial input common-cathode driver that interfaces micro-controllers to LED matrices. All common micro-controllers can be connected to this module by using a 4-wire serial interface. Each output can be addressed without refreshing the entire display. This module requires only 3 I/O lines for driving the display, making it ideal for your micro-controller projects.

Specifications:

• Operating Voltage: 4.7V – 5.3V

• 3.75mm Pixel

• Operating Current: 320mA

• LED Color: RED

Module Parameters:

1 single module can drive a common cathode 8 * 8 dot matrix

2 module Operating voltage : 5V

3 Module size : 5 cm X 3.2 cm wide X 1.5 cm high

4 holes with four screws , diameter 3mm, can be fixed by using our M3 studs

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

Wiring:

1 is a block left input port, an output port on the right .

2 When control of a single module , simply input port receiving CPU

When cascading multiple modules 3 , output and input termination CPU, the input output termination module of the first two modules of the first one , the first two modules of terminating the input of the first three modules , and so on . ..

To 51 single example:

VCC ? 5V

GND ? GND

DIN ? P22

CS ? P21

CLK ? P20