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LED - Enumerate Matrix Characters & Symbols

Loop through available characters & symbols to see what they look like on a Matrix display.

LED Matrix breadboard - Arduino Uno

docs/breadboard/led-matrix.png

Fritzing diagram: docs/breadboard/led-matrix.fzz

 

Run this example from the command line with:

node eg/led-enumeratechars.js
var five = require("johnny-five");

var board = new five.Board();

board.on("ready", function() {

  var matrix = new five.Led.Matrix({
    pins: {
      data: 2,
      clock: 3,
      cs: 4
    }
  });

  matrix.on();

  var shapes = Object.keys(five.Led.Matrix.CHARS);

  var enumerate = function() {
    var i = 0;
    board.loop(500, function() {
      if (i < shapes.length) {
        matrix.draw(five.Led.Matrix.CHARS[shapes[i]]);
        i++;
      }
    });
  };

  enumerate();

  this.repl.inject({
    matrix: matrix,
    enumerate: enumerate
  });
});

 

License

Copyright (c) 2012-2014 Rick Waldron waldron.rick@gmail.com Licensed under the MIT license. Copyright (c) 2015-2018 The Johnny-Five Contributors Licensed under the MIT license.