74 lines
1.9 KiB
C++
74 lines
1.9 KiB
C++
#include <FastLED.h>
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#define kMatrixWidth 16
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#define kMatrixHeight 16
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#define NUM_LEDS (kMatrixWidth * kMatrixHeight)
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// Param for different pixel layouts
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#define kMatrixSerpentineLayout true
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// led array
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CRGB leds[kMatrixWidth * kMatrixHeight];
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// x,y, & time values
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uint32_t x,y,v_time,hue_time,hxy;
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// Play with the values of the variables below and see what kinds of effects they
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// have! More octaves will make things slower.
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// how many octaves to use for the brightness and hue functions
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uint8_t octaves=1;
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uint8_t hue_octaves=3;
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// the 'distance' between points on the x and y axis
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int xscale=57771;
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int yscale=57771;
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// the 'distance' between x/y points for the hue noise
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int hue_scale=1;
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// how fast we move through time & hue noise
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int time_speed=1111;
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int hue_speed=31;
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// adjust these values to move along the x or y axis between frames
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int x_speed=331;
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int y_speed=1111;
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void loop() {
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// fill the led array 2/16-bit noise values
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fill_2dnoise16(LEDS.leds(), kMatrixWidth, kMatrixHeight, kMatrixSerpentineLayout,
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octaves,x,xscale,y,yscale,v_time,
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hue_octaves,hxy,hue_scale,hxy,hue_scale,hue_time, false);
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LEDS.show();
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// adjust the intra-frame time values
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x += x_speed;
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y += y_speed;
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v_time += time_speed;
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hue_time += hue_speed;
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// delay(50);
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}
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void setup() {
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// initialize the x/y and time values
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random16_set_seed(8934);
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random16_add_entropy(analogRead(3));
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Serial.begin(57600);
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Serial.println("resetting!");
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delay(3000);
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LEDS.addLeds<WS2811,6,GRB>(leds,NUM_LEDS);
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LEDS.setBrightness(96);
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hxy = (uint32_t)((uint32_t)random16() << 16) + (uint32_t)random16();
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x = (uint32_t)((uint32_t)random16() << 16) + (uint32_t)random16();
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y = (uint32_t)((uint32_t)random16() << 16) + (uint32_t)random16();
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v_time = (uint32_t)((uint32_t)random16() << 16) + (uint32_t)random16();
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hue_time = (uint32_t)((uint32_t)random16() << 16) + (uint32_t)random16();
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}
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