91 lines
3.1 KiB
C++
91 lines
3.1 KiB
C++
/// @file Overclock.ino
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/// @brief Demonstrates how to overclock a FastLED setup
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#ifdef __AVR__
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// To effectively test the overclock feature we need
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// a large enough dataset to test against. Unfortunately
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// the avr platforms don't have enough memory so this example
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// is disabled for these platforms
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void setup() {}
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void loop() {}
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#else
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#define FASTLED_OVERCLOCK 1.1 // Overclocks by 10%, I've seen 25% work fine.
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#include "fx/2d/noisepalette.h"
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#include "fx/fx.h"
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#include <FastLED.h>
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using namespace fl;
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#define LED_PIN 3
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#define BRIGHTNESS 96
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#define LED_TYPE WS2811
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#define COLOR_ORDER GRB
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#define MATRIX_WIDTH 22
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#define MATRIX_HEIGHT 22
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#define GRID_SERPENTINE 1
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#define NUM_LEDS (MATRIX_WIDTH * MATRIX_HEIGHT)
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// This example combines two features of FastLED to produce a remarkable range
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// of effects from a relatively small amount of code. This example combines
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// FastLED's color palette lookup functions with FastLED's Perlin noise
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// generator, and the combination is extremely powerful.
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//
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// You might want to look at the "ColorPalette" and "Noise" examples separately
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// if this example code seems daunting.
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//
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//
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// The basic setup here is that for each frame, we generate a new array of
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// 'noise' data, and then map it onto the LED matrix through a color palette.
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//
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// Periodically, the color palette is changed, and new noise-generation
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// parameters are chosen at the same time. In this example, specific
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// noise-generation values have been selected to match the given color palettes;
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// some are faster, or slower, or larger, or smaller than others, but there's no
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// reason these parameters can't be freely mixed-and-matched.
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//
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// In addition, this example includes some fast automatic 'data smoothing' at
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// lower noise speeds to help produce smoother animations in those cases.
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//
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// The FastLED built-in color palettes (Forest, Clouds, Lava, Ocean, Party) are
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// used, as well as some 'hand-defined' ones, and some proceedurally generated
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// palettes.
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// Scale determines how far apart the pixels in our noise matrix are. Try
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// changing these values around to see how it affects the motion of the display.
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// The higher the value of scale, the more "zoomed out" the noise iwll be. A
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// value of 1 will be so zoomed in, you'll mostly see solid colors.
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#define SCALE 20
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// We're using the x/y dimensions to map to the x/y pixels on the matrix. We'll
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// use the z-axis for "time". speed determines how fast time moves forward. Try
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// 1 for a very slow moving effect, or 60 for something that ends up looking
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// like water.
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#define SPEED 30
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CRGB leds[NUM_LEDS];
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XYMap xyMap(MATRIX_WIDTH, MATRIX_HEIGHT, GRID_SERPENTINE);
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NoisePalette noisePalette(xyMap);
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void setup() {
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delay(1000); // sanity delay
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FastLED.addLeds<LED_TYPE, LED_PIN, COLOR_ORDER>(leds, NUM_LEDS)
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.setCorrection(TypicalLEDStrip).setScreenMap(xyMap);
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FastLED.setBrightness(96);
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noisePalette.setSpeed(SPEED);
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noisePalette.setScale(SCALE);
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}
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void loop() {
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EVERY_N_MILLISECONDS(5000) { noisePalette.changeToRandomPalette(); }
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noisePalette.draw(Fx::DrawContext(millis(), leds));
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FastLED.show();
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}
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#endif
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