Neue Visualisierung, Formattierung
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@ -0,0 +1,8 @@
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break-after-logical
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indent=tab
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max-code-length=72
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mode=c
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pad-comma
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pad-header
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pad-oper
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style=bsd
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@ -3,7 +3,7 @@
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#define NUM_LEDS 50
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#define DATA_PIN 4
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#define INTR_PIN 2
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#define VIZUALIZATIONS 2
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#define VIZUALIZATIONS 3
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CRGB pixels[NUM_LEDS];
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unsigned char offset = 0;
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@ -12,56 +12,69 @@ volatile unsigned char currentViz = 0;
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void sineRed(unsigned char offset)
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{
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for (unsigned char i = 0; i < NUM_LEDS; i++)
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pixels[(i + offset) % NUM_LEDS] = CRGB(128 + floor(127 * sin(2 * 3.1415926 * i / NUM_LEDS)), 0, 0);
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for (unsigned char i = 0; i < NUM_LEDS; i++)
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pixels[(i + offset) % NUM_LEDS] = CRGB(128 + floor(127 * sin(
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2 * 3.1415926 * i / NUM_LEDS)), 0, 0);
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}
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void falloffRed(unsigned char offset)
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{
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for (unsigned char i = 0; i < NUM_LEDS; i++)
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pixels[i] = 0;
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pixels[offset % NUM_LEDS] = CRGB(0x0F, 0xF, 0xF);
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pixels[(offset + 1) % NUM_LEDS] = CRGB(0x1F, 0xE, 0xE);
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pixels[(offset + 2) % NUM_LEDS] = CRGB(0x2F, 0xD, 0xD);
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pixels[(offset + 3) % NUM_LEDS] = CRGB(0x3F, 0xC, 0xC);
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pixels[(offset + 4) % NUM_LEDS] = CRGB(0x4F, 0xB, 0xB);
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pixels[(offset + 5) % NUM_LEDS] = CRGB(0x5F, 0xA, 0xA);
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pixels[(offset + 6) % NUM_LEDS] = CRGB(0x6F, 0x9, 0x9);
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pixels[(offset + 7) % NUM_LEDS] = CRGB(0x7F, 0x8, 0x8);
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pixels[(offset + 8) % NUM_LEDS] = CRGB(0x8F, 0x7, 0x7);
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pixels[(offset + 9) % NUM_LEDS] = CRGB(0x9F, 0x6, 0x6);
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pixels[(offset + 10) % NUM_LEDS] = CRGB(0xAF, 0x5, 0x5);
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pixels[(offset + 11) % NUM_LEDS] = CRGB(0xBF, 0x4, 0x4);
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pixels[(offset + 12) % NUM_LEDS] = CRGB(0xCF, 0x3, 0x3);
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pixels[(offset + 13) % NUM_LEDS] = CRGB(0xDF, 0x2, 0x2);
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pixels[(offset + 14) % NUM_LEDS] = CRGB(0xEF, 0x1, 0x1);
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pixels[(offset + 15) % NUM_LEDS] = CRGB(0xFF, 0x0, 0x0);
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// Alles aus
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memset(pixels, 0, NUM_LEDS * sizeof(CRGB));
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pixels[offset % NUM_LEDS] = CRGB(0x0F, 0xF, 0xF);
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pixels[(offset + 1) % NUM_LEDS] = CRGB(0x1F, 0xE, 0xE);
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pixels[(offset + 2) % NUM_LEDS] = CRGB(0x2F, 0xD, 0xD);
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pixels[(offset + 3) % NUM_LEDS] = CRGB(0x3F, 0xC, 0xC);
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pixels[(offset + 4) % NUM_LEDS] = CRGB(0x4F, 0xB, 0xB);
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pixels[(offset + 5) % NUM_LEDS] = CRGB(0x5F, 0xA, 0xA);
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pixels[(offset + 6) % NUM_LEDS] = CRGB(0x6F, 0x9, 0x9);
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pixels[(offset + 7) % NUM_LEDS] = CRGB(0x7F, 0x8, 0x8);
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pixels[(offset + 8) % NUM_LEDS] = CRGB(0x8F, 0x7, 0x7);
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pixels[(offset + 9) % NUM_LEDS] = CRGB(0x9F, 0x6, 0x6);
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pixels[(offset + 10) % NUM_LEDS] = CRGB(0xAF, 0x5, 0x5);
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pixels[(offset + 11) % NUM_LEDS] = CRGB(0xBF, 0x4, 0x4);
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pixels[(offset + 12) % NUM_LEDS] = CRGB(0xCF, 0x3, 0x3);
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pixels[(offset + 13) % NUM_LEDS] = CRGB(0xDF, 0x2, 0x2);
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pixels[(offset + 14) % NUM_LEDS] = CRGB(0xEF, 0x1, 0x1);
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pixels[(offset + 15) % NUM_LEDS] = CRGB(0xFF, 0x0, 0x0);
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}
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void halfSineOverlap(unsigned char offset)
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{
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const unsigned char sine[NUM_LEDS] = {0, 87, 163, 220, 251, 251, 220, 163, 87};
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for (unsigned char i = 0; i < NUM_LEDS; i++)
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pixels[NUM_LEDS - i] = CRGB(sine[(i + offset) % NUM_LEDS],
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sine[(i + 2 * offset) % NUM_LEDS], sine[(i + 3 * offset) % NUM_LEDS]);
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}
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void changeViz(void)
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{
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currentViz = (currentViz + 1) % VIZUALIZATIONS;
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currentViz = (currentViz + 1) % VIZUALIZATIONS;
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}
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void setup()
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{
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FastLED.addLeds<WS2812B, DATA_PIN>(pixels, NUM_LEDS);
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FastLED.setBrightness(0);
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for (int i = 0; i < NUM_LEDS; i++)
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pixels[i] = CRGB(0, 0, 0);
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FastLED.show();
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viz[0] = &sineRed;
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viz[1] = &falloffRed;
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pinMode(INTR_PIN, INPUT_PULLUP);
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attachInterrupt(digitalPinToInterrupt(INTR_PIN), changeViz, FALLING);
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FastLED.addLeds<WS2812B, DATA_PIN>(pixels, NUM_LEDS);
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FastLED.setBrightness(0);
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// Alles aus
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memset(pixels, 0, NUM_LEDS * sizeof(CRGB));
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FastLED.show();
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viz[0] = &sineRed;
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viz[1] = &falloffRed;
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viz[2] = &halfSineOverlap;
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pinMode(INTR_PIN, INPUT_PULLUP);
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attachInterrupt(digitalPinToInterrupt(INTR_PIN), changeViz, FALLING);
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}
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void loop()
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{
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unsigned char brightness = 16 + floor(239.0 * analogRead(A0) / 1024.0);
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unsigned int sleep = 100 + floor(900.0 * analogRead(A1) / 1024.0);
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(*viz[currentViz])(offset);
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FastLED.setBrightness(brightness);
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FastLED.show();
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delay(sleep);
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offset++;
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unsigned char brightness = 16 + floor(239.0 * analogRead(A0) / 1024.0);
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unsigned int sleep = 100 + floor(900.0 * analogRead(A1) / 1024.0);
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(*viz[currentViz])(offset);
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FastLED.setBrightness(brightness);
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FastLED.show();
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delay(sleep);
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offset++;
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}
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@ -45,3 +45,9 @@ Eine einfache Sinus-Funktion über eine Periode in Rot.
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Ein rotes Pixel läuft herum und wird dabei immer lichtschwächer &
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blasser.
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### `halfSineOverlap`
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3 Sinus-Halbwellen in Rot/Grün/Blau, die mit unterschiedlicher
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Geschwindigkeit (1x/2x/3x) über das Band laufen und bei Überlagerung
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auch entsprechend die Farben mischen.
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