James Cash
f9ae733be5
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8 years ago | |
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examples/LED-AlphaSquare | 8 years ago | |
src | 8 years ago | |
.gitignore | 8 years ago | |
.travis.yml | 8 years ago | |
COPYING | 8 years ago | |
Makefile | 8 years ago | |
README.md | 8 years ago | |
library.properties | 8 years ago |
README.md
Kaleidoscope-LED-AlphaSquare
An alphabet for your per-key LEDs, AlphaSquare
provides a way to display 4x4
"pixel" symbols on your keyboard. With this building block, one can build some
sweet animations, or just show off - the possibilities are almost endless!
Using the plugin
To use the plugin, one needs to include the header, use
the plugin,
and, one way or another, call the display
method.
#include <Kaleidoscope.h>
#include <Kaleidoscope-LED-AlphaSquare.h>
void setup() {
USE_PLUGINS(&AlphaSquare);
Kaleidoscope.setup();
AlphaSquare.display (Key_A);
}
Plugin methods
The plugin provides the AlphaSquare
object, which has the following methods
and properties:
.display(key)
.display(key, col)
.display(key, row, col)
.display(key, row, col, color)
Display the symbol for
key
at the given row or column, with pixels set to the specifiedcolor
. Ifrow
is omitted, the first row -0
is assumed. If the column is omitted, then the third column -2
- is used. If thecolor
is omitted, the plugin will use the global.color
property.The plugin can display the English alphabet and the numbers from 0 to 9.
.display(symbol)
.display(symbol, col)
.display(symbol, row, col)
.display(symbol, row, col, color)
As the previous function, but instead of a key, it expects a 4x4 bitmap in the form of a 16-bit unsigned integer, where the low bit is the top-right corner, the second-lowest bit is to the right of that, and so on.
The
SYM4x4
macro can be used to simplify creating these bitmaps.
.clear(key)
, .clear(symbol)
.clear(key, col)
, .clear(symbol, col)
.clear(key, col, row)
, .clear(symbol, col, row)
Just like the
.display()
counterparts, except these clear the symbol, by turning the LED pixels it is made up from off.
.color
The color to use to draw the pixels.
Defaults to
{ 0x80, 0x80, 0x80 }
(light gray).
Plugin helpers
SYM4x4(...)
A helper macro, which can be used to set up custom bitmaps. It expects 16 values, a 4x4 square of zeroes and ones. Zeroes are transparent pixels, ones will be colored.
Extra symbols
There is a growing number of pre-defined symbols available in the
kaleidoscope::alpha_square::symbols
namespace. Ok, growing may have been an
exaggeration, there is only one as of this writing:
Lambda
A lambda (
λ
) symbol.
Dependencies
Further reading
Starting from the example is the recommended way of getting started with the plugin.