Module Led Dot Matrix 32x8 Display with Max7219 for Arduino

Detail Module Led Dot Matrix 32x8 Display with Max7219 for Arduino

Module Led Dot Matrix 8x8 Display with Max7219 for Arduino

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; // Attach CS to this pin, DIN to MOSI and CLK to SCK (cf http://arduinocc/en/Reference/SPI )
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);

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