node.jsでAdafruit 32x16 RGB LED Matrixを制御する (2)：パターン表示

on Adafruit, LED, Raspberry Pi, node.js
Last updated on

setPixel(x, y, red, green, blue)をガリガリ回して見たパターン。

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var LedMatrix = require("node-rpi-rgb-led-matrix");

var matrix = new LedMatrix(16);

var pattern = [
  [0,0,0,0,0,1,1,1,1,1,1,0,0,0,0,0,0,0,1,0,0,1,0,1,1,1,1,0,0,0,0,0],
  [0,0,0,1,1,0,0,0,0,0,0,1,1,0,0,0,0,0,1,0,0,1,0,1,0,0,0,0,0,0,0,0],
  [0,0,1,0,0,0,0,0,0,0,0,0,0,1,0,0,0,0,1,1,1,1,0,1,1,1,1,0,0,0,0,0],
  [0,1,0,0,0,1,0,0,0,0,1,0,0,0,1,0,0,0,1,0,0,1,0,1,0,0,0,0,0,0,0,0],
  [0,1,0,0,0,1,0,0,0,0,1,0,0,0,1,0,0,0,1,0,0,1,0,1,1,1,1,0,0,0,0,0],
  [1,0,0,0,0,1,0,0,0,0,1,0,0,0,0,1,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0],
  [1,0,0,0,0,1,0,0,0,0,1,0,0,0,0,1,0,0,1,0,0,0,0,1,0,0,0,0,1,1,1,1],
  [1,0,0,0,0,0,0,0,0,0,0,0,0,0,0,1,0,0,1,0,0,0,0,1,0,0,0,0,1,0,0,1],
  [1,0,0,0,0,0,0,0,0,0,0,0,0,0,0,1,0,0,1,0,0,0,0,1,0,0,0,0,1,0,0,1],
  [1,0,0,0,0,0,0,0,0,0,0,0,0,0,0,1,0,0,1,0,0,0,0,1,0,0,0,0,1,0,0,1],
  [1,0,0,0,1,0,0,0,0,0,0,1,0,0,0,1,0,0,1,1,1,1,0,1,1,1,1,0,1,1,1,1],
  [0,1,0,0,1,0,0,0,0,0,0,1,0,0,1,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0],
  [0,1,0,1,0,1,1,1,1,1,1,0,1,0,1,0,0,0,0.1,0.2,0.3,0.4,0.5,0.6,0.7,0.8,0.9,1,1,1,1],
  [0,0,1,0,0,0,0,0,0,0,0,0,0,1,0,0,0,0,0.1,0.2,0.3,0.4,0.5,0.6,0.7,0.8,0.9,1,1,1,1],
  [0,0,0,1,1,0,0,0,0,0,0,1,1,0,0,0,0,0,0.1,0.2,0.3,0.4,0.5,0.6,0.7,0.8,0.9,1,1,1,1],
  [0,0,0,0,0,1,1,1,1,1,1,0,0,0,0,0,0,0,0.1,0.2,0.3,0.4,0.5,0.6,0.7,0.8,0.9,1,1,1,1],
];

matrix.clear();

console.log('width: ' + matrix.getWidth());
console.log('height: ' + matrix.getHeight());

setInterval(function(){
  var r = Math.random()*255;
  var g = Math.random()*255;
  var b = Math.random()*255;
  for (var y=0; y < 16; y++) {
    for (var x = 0; x < 32; x++) {
      matrix.setPixel(x, y, pattern[y][x]*r,pattern[y][x]*g,pattern[y][x]*b);
    }
  }
},  500);

で、こんな感じです。

attention

ライブラリのソース眺めて見た感じ、画像の直接表示も実装されてるのかな、、。