Modul Panel Dot Matrix 32x8 MAX7219 4 in 1 LED Display

Description:

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

2 module Operating voltage: 5V

3 Module dimensions: length 12.8 cm X 3.2 cm wide X 1.3 cm high

4 holes with screws, diameter 3mm

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

Arduino sketch example:

#include SPI.h

#include Adafruit_GFX.h

#include Max72xxPanel.h

int pinCS = 10;

int numberOfHorizontalDisplays = 1;

int numberOfVerticalDisplays = 4;

Max72xxPanel matrix = Max72xxPanel(pinCS, numberOfHorizontalDisplays, numberOfVerticalDisplays);

String tape = "Ayo belajar Arduino bersama DA Electronics";

int wait = 50; // In milliseconds

int spacer = 1;

int width = 5 + spacer; // The font width is 5 pixels

void setup() {

matrix.setIntensity(7); // Use a value between 0 and 15 for brightness

// Adjust to your own needs

matrix.setRotation(matrix.getRotation() + 1 ); // The first display is position upside down

// matrix.setRotation(1, 1); // The first display is position upside down

}

void loop() {

for ( int i = 0 ; i < width * tape.length() + matrix.width() - 1 - spacer; i++ ) {

matrix.fillScreen(LOW);

int letter = i / width;

int x = (matrix.width() - 1) - i % width;

int y = (matrix.height() - 8) / 2; // center the text vertically

while ( x + width - spacer >= 0 && letter >= 0 ) {

if ( letter < tape.length() ) {

matrix.drawChar(x, y, tape[letter], HIGH, LOW, 1);

}

letter--;

x -= width;

}

matrix.write(); // Send bitmap to display

delay(wait);

}

}