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- This is MAX7219 4 in 1 Dot Matrix Display Module
- This LED matrix module for boards compatible with Arduino needs an input voltage of 3.7 to 5.3 V and Input Current: 320 mA
- This Module with input and output interfaces, support for cascading multiple modules.
- The MAX7219 Dot LED matrix module runs on Driver Chip: MAX7219.
- This Module has Fixing screws with 64 holes with a diameter 3mm.
- The MAX7219 Dot LED matrix module is designed with a display dimension of 32x32x6mm and is integrated with a PCB dimension of 128x32mm
4 in 1 Dot Matrix Module (MAX7219)
This is a Dot Led Matrix Module with a MAX7219 Driver chip. You will be able to add some great cool animation to your upcoming project by using this dot matrix display module. The individual module contains 88 LEDs, each of which is precisely controlled by the MAX7219 driver to produce the desired colour pattern. The main advantage of using this is that users will be able to control all 64 LEDs by simply connecting three output communication wires to microcontrollers such as Arduino, etc.
It is also very simple to connect the two modules. Simply connect the previous breakout board's output pins to the new module's input pins, and you can connect as many DOT LED Matrix Modules to the Arduino as you want!!! The MAX7219 Dot Led Matrix Module is a common-cathode serial input driver that connects microcontrollers to LED matrices. A 4-wire serial interface allows you to connect any common microcontroller to this module. Without refreshing the entire display, each output can be addressed. This module only needs three I/O lines to drive the display, making it ideal for microcontroller projects. To set the segment current of each LED, only one external register is used.
Wiring instructions:
- 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 the 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.
Pin connection:
Dot Matrix Display Module to the Arduino
| Vcc | 5V |
| GND | GND |
| DIN | Pin 12 |
| CS | Pin 10 |
| CLK | Pin 11 |
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Package Includes:
- 1 x 4-in-1 Dot LED Matrix Module
- 1 x Connecting Wire
Specifications
| Driver IC | MAX7219 |
| Input Voltage | 5V |
| Max. Operating Current | 320mA |
| LED Dimensions | 32x32x6mm |
| Weight | 25 grams |
1. What is a MAX7219 module?
- The MAX7219 Dot Led Matrix Module 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 microcontroller projects.
2. What is a matrix LED display?
- "Dot Matrix" is a unique category of LED Displays and is also found in LCD and OLED products. The concept of LED Dot Matrix Display is the same as LCD Dot Matrix and OLED Dot Matrix. It is able to show characters, numbers, or graphics by lighting up different pixels(dots) of a Display.
3. How does a dot matrix display work?
- Dot matrix display is manufactured in various dimensions. Arrangement of LEDs in the matrix pattern is made in either of the two ways: Row anode-column cathode or Row cathode-column anode. By using this dot matrix display we can reduce the number of pins required for controlling all the LEDs.
4. How do I connect a dot matrix to Arduino?
- To connect the Dot Matrix to Arduino, simply connect the Vcc and GND pins of the Dot Matrix to 5V and GND on the Arduino and the DIN, CS, and CLK pins of the Dot Matrix to any digital pins on the Arduino.
