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8x8 matrix display MAX7219

Arduino is an open-source electronics platform based on easy-to-use hardware and software. Arduino boards are able to read inputs - light on a sensor, a finger on a button, or a Twitter message - and turn it into an output - activating a motor, turning on an LED, publishing something online.

The Wiring and Arduino both use C/C++ as programming languages and Arduino uses a simplified version. Processing used Java as a programming language but served as the basis for Wiring, which was the basis for Arduino.


In this tutorial we are creating the led display in 8x8 matrix MAX7219 module.


Preview :


Components required:

    • Arduino UNO board
    • LED matrix MAX7219
    • Jumper wires

Diagram:


In proteus schematic diagram:

First we need Arduino IDLE for creating the led matrix display program. Download the Arduino IDLE from the given below link

Arduino IDLE download link: https://www.arduino.cc/en/software

Then we need to download the led library to control the LED of MAX7219, then change the directory of download library file to Arduino library directories.You can download the LED control library from given below link.

LED control library Download link: https://www.arduino.cc/reference/en/libraries/ledcontrol/

Open the Arduino to start coding the programs.

First include the led control library in the program. Then make some variables like DIN , CS, CLK and Led control lc variable with some inputs like(DIN,CS,CLK)




Now we need to code the void setup loop with common functions like shutdown, intensity and clear Display.

Shutdown - The MAX72XX is in power-saving mode on startup

setIntensity - Set the brightness to maximum value

clearDisplay - clear the display


Now make the LED control on MAX7219 with array containing  of 8 characters to make words, symbols, emoji using some online matrix pixel complier .

LED Matrix online Editor :click here


online editor:





Make void loop of print byte function and make the for loop to repeat the led displays

In void loop use the print byte function as we created before with for loop condition to print the specific character or arrays which we created.

source code->click here


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