//Perlin noise fire procedure
//16x16 rgb led matrix demo
//Yaroslaw Turbin, 22.06.2020
#include "FastLED.h"
// Matrix size
#define NUM_ROWS 16
#define NUM_COLS 16
#define NUM_LEDS NUM_ROWS * NUM_COLS
// LEDs pin
#define DATA_PIN 5
#define LED_TYPE WS2812B
#define COLOR_ORDER GRB
// LED brightness
#define BRIGHTNESS 255
#define MAX_POWER_MILLIAMPS 700
// Define the array of leds
CRGB leds[NUM_LEDS];
// DEFINE_GRADIENT_PALETTE(firepal) { // белая, желтая, красная палитра
// 0, 0, 0, 0, //black
// 32, 255, 0, 0, // red
// 190, 255, 255, 0, //yellow
// 255, 255, 255, 255 // white
// };
DEFINE_GRADIENT_PALETTE(firepal) { // красная палитра
0, 0, 0, 0, //black
128, 255, 0, 0, // red
255, 255, 0, 0 // red
};
CRGBPalette16 myPal = firepal;
void setup() {
FastLED.addLeds<LED_TYPE, DATA_PIN, COLOR_ORDER>(leds, NUM_LEDS).setCorrection( TypicalLEDStrip );
FastLED.setMaxPowerInVoltsAndMilliamps(5, MAX_POWER_MILLIAMPS);
FastLED.setBrightness(BRIGHTNESS);
}
void loop() {
int scalexy = 60; // масштаб
float speed = 1.2; //скорость
float a = millis()*speed;
for (int i = 0; i < NUM_COLS; i++) {
for (int j = 0; j < NUM_ROWS; j++) {
leds[XY(i, j)] =
ColorFromPalette(myPal, qsub8(inoise8(i * scalexy, j * scalexy + (int)a, (int)a / 2), abs8(j - (NUM_ROWS - 1)) * 255 / (NUM_ROWS + 2)), 255);
}
}
FastLED.show();
}
uint8_t XY (uint8_t x, uint8_t y) { //матрица идет от нижнего левого угла вправо и дальше зигзагом
const uint8_t XYTable[] = {
255, 254, 253, 252, 251, 250, 249, 248, 247, 246, 245, 244, 243, 242, 241, 240,
224, 225, 226, 227, 228, 229, 230, 231, 232, 233, 234, 235, 236, 237, 238, 239,
223, 222, 221, 220, 219, 218, 217, 216, 215, 214, 213, 212, 211, 210, 209, 208,
192, 193, 194, 195, 196, 197, 198, 199, 200, 201, 202, 203, 204, 205, 206, 207,
191, 190, 189, 188, 187, 186, 185, 184, 183, 182, 181, 180, 179, 178, 177, 176,
160, 161, 162, 163, 164, 165, 166, 167, 168, 169, 170, 171, 172, 173, 174, 175,
159, 158, 157, 156, 155, 154, 153, 152, 151, 150, 149, 148, 147, 146, 145, 144,
128, 129, 130, 131, 132, 133, 134, 135, 136, 137, 138, 139, 140, 141, 142, 143,
127, 126, 125, 124, 123, 122, 121, 120, 119, 118, 117, 116, 115, 114, 113, 112,
96, 97, 98, 99, 100, 101, 102, 103, 104, 105, 106, 107, 108, 109, 110, 111,
95, 94, 93, 92, 91, 90, 89, 88, 87, 86, 85, 84, 83, 82, 81, 80,
64, 65, 66, 67, 68, 69, 70, 71, 72, 73, 74, 75, 76, 77, 78, 79,
63, 62, 61, 60, 59, 58, 57, 56, 55, 54, 53, 52, 51, 50, 49, 48,
32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47,
31, 30, 29, 28, 27, 26, 25, 24, 23, 22, 21, 20, 19, 18, 17, 16,
0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15
};
uint8_t i = (y * NUM_COLS) + x;
uint8_t j = XYTable[i];
return j;
}
// uint16_t XY (uint8_t x, uint8_t y) { return (y * NUM_COLS + x);} // для эмулятора