Inital Commit
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*.hex
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#include <FastLED.h>
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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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CRGB pixels[NUM_LEDS];
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unsigned char offset = 0;
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void (*viz[VIZUALIZATIONS])(unsigned char);
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volatile unsigned char currentViz = 0;
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void viz1(unsigned char offset) {
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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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}
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void viz2(unsigned char offset) {
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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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}
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void changeViz(void) {
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currentViz = (currentViz + 1) % VIZUALIZATIONS;
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}
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void setup() {
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FastLED.addLeds<WS2812B, DATA_PIN>(pixels, NUM_LEDS);
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FastLED.setBrightness(255);
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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] = &viz1;
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viz[1] = &viz2;
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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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(*viz[currentViz])(offset);
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FastLED.show();
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delay(100);
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offset++;
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}
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Copyright (c) 2019 Peter Ludikovsky, All rights reserved.
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Redistribution and use in source and binary forms, with or without
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modification, are permitted provided that the following conditions are met:
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Redistributions of source code must retain the above copyright notice, this
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list of conditions and the following disclaimer. Redistributions in binary
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form must reproduce the above copyright notice, this list of conditions and
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the following disclaimer in the documentation and/or other materials
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provided with the distribution.
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Neither the name of the copyright holder nor the names of its contributors
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may be used to endorse or promote products derived from this software
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without specific prior written permission.
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THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
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ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
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WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
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DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
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FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
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SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
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CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
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OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
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OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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`/usr/space` ColorStrip
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=======================
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Code für die LED-Beleuchtung beim Eingang zum `/usr/space`
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Specs
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-----
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- Arduino UNO
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- Data Pin: 4
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- Interrupt Pin: 2
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- LED Strip:
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- 5m lang
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- 10 Pixel/m
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- 3 RGB-LEDs/Pixel
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- WS2818B Controller
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Code
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----
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Neue Visualisierungen dürfen gerne hinzugefügt werden. Die Funktionen
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dafür brauchen die Signatur `void func(unsigned char)` und müssen als
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Funktions-Pointer zum Array `viz` hinzugefügt werden (in `setup()`). Der
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einzige Parameter ist ein Offset, der nach jedem Tick (derzeit 100ms)
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erhöht wird und im Bereich 0-255 liegt.
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In der Funktion selbst müssen die Farbwerte für jedes Pixel in das Array
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`pixels` geschrieben werden, welches automatisch beim nächsten Refresh
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ausgegeben wird.
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