【星坛综艺会14 期，迎新春】DIY 红绿蓝发光二极管矩阵显示

【星坛综艺会14 期，迎新春】DIY 红绿蓝发光二极管矩阵显示

RGB LED Matrix Display with Arduino "AIDEXINGKONG 2025 Spring Festival" (爱的星空2025春节）

Control Board: Arduino Uno

Display Board: DC5V WS2812B RGB Flexible LED Panel Matrix Programmable Display Screen Lights

https://www.youtube.com/watch?v=PMT955n09pA

方法，见我以前发表过的一篇

“DIY: express 'I love you!' for someone for $50”：

https://bbs.wenxuecity.com/rdzn/4940014.html

The Program Code:

#include <Adafruit_GFX.h>

#include <Adafruit_NeoMatrix.h>

#include <Adafruit_NeoPixel.h>

#define DATA_PIN 6

#define arr_len( x ) ( sizeof( x ) / sizeof( *x ) )

// setting matrix

Adafruit_NeoMatrix matrix = Adafruit_NeoMatrix(32, 8, DATA_PIN,

NEO_MATRIX_TOP +  NEO_MATRIX_LEFT +

NEO_MATRIX_COLUMNS + NEO_MATRIX_PROGRESSIVE + NEO_MATRIX_ZIGZAG,

NEO_GRB + NEO_KHZ800);

char* Text[]= {"AIDEXINGKONG", "2025", "Spring Festival0"};

const uint16_t colors[] = {

  matrix.Color(255, 0, 255), matrix.Color(100,255,0), matrix.Color(255,255,0), matrix.Color(0,0,255), matrix.Color(255,0,255), matrix.Color(0,255,255), matrix.Color(255,255,255)};

int brightness = 80;

// end

int numMode =  arr_len(Text) - 1;

int numColor =  arr_len(colors)-1;

int pixelPerChar  =  4;

int maxDisplacement;

int mode =0;

void setup() {

  matrix.begin();

  matrix.setTextWrap(false);

  matrix.setBrightness(brightness);

  matrix.setTextColor(colors[0]);

}

int  y = matrix.height();

int  x = matrix.width();

int pass =  0;

int line_pass =0;

void loop() {

  if (mode > numMode) {mode = 0;}

  matrix.fillScreen(0);

  matrix.setCursor(x, 0);

  scroll(Text[mode], 15);

}

// scrolling

void scroll(char* message, int delays) {

  maxDisplacement = strlen(message) * pixelPerChar + matrix.width();

  if(++line_pass > matrix.width()) line_pass = 0;

 matrix.print(String(message));

 if(--x < -maxDisplacement) {

   x = matrix.width();

   if(++pass  >=  numColor) { pass = 0; };

  matrix.setTextColor(colors[pass]);

  mode++;

  }

  matrix.show();

  delay(delays);

  }