66 lines
1.2 KiB
C++
66 lines
1.2 KiB
C++
#include <Adafruit_NeoPixel.h>
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#ifdef __AVR__
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#include <avr/power.h>
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#endif
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#define PIN 6
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#define NUM_LEDS 150
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#define WHITE_PIN 4
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Adafruit_NeoPixel strip = Adafruit_NeoPixel(NUM_LEDS, PIN, NEO_GRB | NEO_KHZ800);
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const uint32_t colors[] = {
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0x440000, // Green
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0x44dd00, // Yellow
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0x44dd00, // Yellow
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0x22dd00, // Amber
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0x22dd00, // Amber
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0x00ff00, // Red
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0x008844, // Purple
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0x000088, // Blue
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};
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const int ncolors = sizeof(colors) / sizeof(*colors);
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void setup() {
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strip.begin();
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strip.show();
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pinMode(WHITE_PIN, INPUT_PULLUP);
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}
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void loop_color() {
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for (int i = 0; i < NUM_LEDS/12; i += 1) {
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int pos = random(NUM_LEDS);
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if (random(100) < 20) {
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int color = random(ncolors);
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strip.setPixelColor(pos, colors[color]);
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} else {
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strip.setPixelColor(pos, 0);
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}
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}
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strip.show();
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delay(240);
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}
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void loop_white() {
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for (int i = 0; i < NUM_LEDS/12; i += 1) {
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int pos = random(NUM_LEDS);
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if (random(100) < 5) {
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strip.setPixelColor(pos, 0x0);
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} else {
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strip.setPixelColor(pos, 0x99ffaa);
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}
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}
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strip.show();
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delay(24);
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}
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void loop() {
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if (digitalRead(WHITE_PIN)) {
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loop_white();
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} else {
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loop_color();
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}
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}
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