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Thread: Octoboard and Teensy 3.2 and Fast LED

  1. #1

    Octoboard and Teensy 3.2 and Fast LED

    Hey forum.

    If I want to use FastLED with an Octoboard:

    Ive learned Data Pin 14 works with the blue ethernet wire.

    Other non-FastLED code works well, but FastLED is glitchy, therefore I dont think its a power supply issue.

    I have included the Octolibrary in my DemoReel Code and set data pin to 14, Led count to 200.

    Any advice on how to get smoother animations and use FastLED w/ Octo board?

    thanks.

    [CODE]#include <FastLED.h>

    FASTLED_USING_NAMESPACE

    // FastLED "100-lines-of-code" demo reel, showing just a few
    // of the kinds of animation patterns you can quickly and easily
    // compose using FastLED.
    //
    // This example also shows one easy way to define multiple
    // animations patterns and have them automatically rotate.
    //
    // -Mark Kriegsman, December 2014

    #if defined(FASTLED_VERSION) && (FASTLED_VERSION < 3001000)
    #warning "Requires FastLED 3.1 or later; check github for latest code."
    #endif

    #define DATA_PIN 14
    //#define CLK_PIN 4
    #define LED_TYPE WS2811
    #define COLOR_ORDER GRB
    #define NUM_LEDS 200
    CRGB leds[NUM_LEDS];

    #define BRIGHTNESS 96
    #define FRAMES_PER_SECOND 120

    void setup() {
    delay(3000); // 3 second delay for recovery

    // tell FastLED about the LED strip configuration
    FastLED.addLeds<LED_TYPE,DATA_PIN,COLOR_ORDER>(led s, NUM_LEDS).setCorrection(TypicalLEDStrip);
    //FastLED.addLeds<LED_TYPE,DATA_PIN,CLK_PIN,COLOR_OR DER>(leds, NUM_LEDS).setCorrection(TypicalLEDStrip);

    // set master brightness control
    FastLED.setBrightness(BRIGHTNESS);
    }


    // List of patterns to cycle through. Each is defined as a separate function below.
    typedef void (*SimplePatternList[])();
    SimplePatternList gPatterns = { rainbow, rainbowWithGlitter, confetti, sinelon, juggle, bpm };

    uint8_t gCurrentPatternNumber = 0; // Index number of which pattern is current
    uint8_t gHue = 0; // rotating "base color" used by many of the patterns

    void loop()
    {
    // Call the current pattern function once, updating the 'leds' array
    gPatterns[gCurrentPatternNumber]();

    // send the 'leds' array out to the actual LED strip
    FastLED.show();
    // insert a delay to keep the framerate modest
    FastLED.delay(1000/FRAMES_PER_SECOND);

    // do some periodic updates
    EVERY_N_MILLISECONDS( 20 ) { gHue++; } // slowly cycle the "base color" through the rainbow
    EVERY_N_SECONDS( 10 ) { nextPattern(); } // change patterns periodically
    }

    #define ARRAY_SIZE(A) (sizeof(A) / sizeof((A)[0]))

    void nextPattern()
    {
    // add one to the current pattern number, and wrap around at the end
    gCurrentPatternNumber = (gCurrentPatternNumber + 1) % ARRAY_SIZE( gPatterns);
    }

    void rainbow()
    {
    // FastLED's built-in rainbow generator
    fill_rainbow( leds, NUM_LEDS, gHue, 7);
    }

    void rainbowWithGlitter()
    {
    // built-in FastLED rainbow, plus some random sparkly glitter
    rainbow();
    addGlitter(80);
    }

    void addGlitter( fract8 chanceOfGlitter)
    {
    if( random8() < chanceOfGlitter) {
    leds[ random16(NUM_LEDS) ] += CRGB::White;
    }
    }

    void confetti()
    {
    // random colored speckles that blink in and fade smoothly
    fadeToBlackBy( leds, NUM_LEDS, 10);
    int pos = random16(NUM_LEDS);
    leds[pos] += CHSV( gHue + random8(64), 200, 255);
    }

    void sinelon()
    {
    // a colored dot sweeping back and forth, with fading trails
    fadeToBlackBy( leds, NUM_LEDS, 20);
    int pos = beatsin16( 13, 0, NUM_LEDS-1 );
    leds[pos] += CHSV( gHue, 255, 192);
    }

    void bpm()
    {
    // colored stripes pulsing at a defined Beats-Per-Minute (BPM)
    uint8_t BeatsPerMinute = 62;
    CRGBPalette16 palette = PartyColors_p;
    uint8_t beat = beatsin8( BeatsPerMinute, 64, 255);
    for( int i = 0; i < NUM_LEDS; i++) { //9948
    leds[i] = ColorFromPalette(palette, gHue+(i*2), beat-gHue+(i*10));
    }
    }

    void juggle() {
    // eight colored dots, weaving in and out of sync with each other
    fadeToBlackBy( leds, NUM_LEDS, 20);
    byte dothue = 0;
    for( int i = 0; i < 8; i++) {
    leds[beatsin16( i+7, 0, NUM_LEDS-1 )] |= CHSV(dothue, 200, 255);
    dothue += 32;
    }
    }
    /CODE]

  2. #2
    Senior Member crees's Avatar
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    Dec 2016
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    I did not see any reference of octows2811 library . If you are using the octows2811 library then there is no need to define pin 14. It’s predefined. Instead you would use pin 2 for the first segment.

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