Mitch K
Published © CC BY-NC-SA

NeoPixel Snowflake

This is just one snowflake of soon to be three that I created with several patterns with NeoPixels. Oh its so Christmas-ie!

IntermediateWork in progress5 hours361
NeoPixel Snowflake

Things used in this project

Hardware components

SparkFun SAMD21 Dev Breakout
SparkFun SAMD21 Dev Breakout
×1
SparkFun Logic Level Converter - Bi-Directional
SparkFun Logic Level Converter - Bi-Directional
×1
Adafruit NeoPixel Digital RGB LED Strip 144 LED, 1m White
Adafruit NeoPixel Digital RGB LED Strip 144 LED, 1m White
×1

Software apps and online services

Visual Studio 2017
Microsoft Visual Studio 2017

Story

Read more

Code

Neopixel snowflake

Arduino
#include <Arduino.h>
#include <NeoPixelBus.h>
#include <NeoPixelAnimator.h>

NeoGamma<NeoGammaTableMethod> colorGamma;

const unsigned int PixelCount[] = {13, 6, 6, 6, 6};
const byte PixelPin1 = 2;
const byte PixelPin2 = 3; //26
const byte PixelPin3 = 4; //30
const byte PixelPin4 = 5; //34
const byte PixelPin5 = 6; //38

NeoPixelBus<NeoGrbFeature, Neo800KbpsMethod> strip[] = {
    {PixelCount[0], PixelPin1},
    {PixelCount[1], PixelPin2},
    {PixelCount[2], PixelPin3},
    {PixelCount[3], PixelPin4},
    {PixelCount[4], PixelPin5}};

byte stripCount = 5;
byte x = 0, y = 0, z = 0;

RgbColor alloff(0, 0, 0);
RgbColor randColor(RgbColor(100, 100, 100));

RgbColor white1 = colorGamma.Correct(RgbColor(100, 100, 100));
RgbColor red1 = colorGamma.Correct(RgbColor(150, 0, 0));
RgbColor green1 = colorGamma.Correct(RgbColor(0, 150, 0));
RgbColor blue1 = colorGamma.Correct(RgbColor(0, 10, 50));
RgbColor yellow1 = colorGamma.Correct(RgbColor(150, 150, 0));
RgbColor purple1 = colorGamma.Correct(RgbColor(150, 0, 150));
RgbColor orange1 = colorGamma.Correct(RgbColor(125, 75, 0));
RgbColor pink1 = colorGamma.Correct(RgbColor(100, 0, 50));
RgbColor cyan1 = colorGamma.Correct(RgbColor(0, 100, 100));

int k1 = 0;

void setup()
{
    SerialUSB.begin(9600);

    for (byte i = 0; i < stripCount; i++)
    {
        strip[i].Begin();
        strip[i].Show();
    }
}

void loop()
{
    SerialUSB.println("redGreenChase");
    for (int i = 0; i < 10; i++)
    {
        redGreenChase(350);
    }

    SerialUSB.println("whiteFade");
    for (int i = 0; i < 20; i++)
    {
        whiteFade(1, 20, 200);
    }

    SerialUSB.println("pulse");
    for (int i = 0; i < 15; i++)
    {
        pulse(0);
    }

    SerialUSB.println("rainbowFade");
    for (int i = 0; i < 25; i++)
    {
        rainbowFade(0);
        delay(75);
    }

    SerialUSB.println("radiate");
    for (int i = 0; i < 20; i++)
    {
        radiate(1);
    }

    SerialUSB.println("rainbow");
    for (int i = 0; i < 20; i++)
    {
        rainbow(0);
    }

    SerialUSB.println("spiral");
    for (int i = 0; i < 20; i++)
    {
        spiral(1);
    }
}

/////////////////////////////////////////////////////////////

void redGreenChase(int delayTime)
{
    for (byte m = 0; m < stripCount; m++)
    {
        for (byte i = 0; i < PixelCount[m]; i += 2)
        {
            strip[m].SetPixelColor(i, red1);
            strip[m].SetPixelColor(i + 1, green1);
        }
    }

    for (byte i = 0; i < stripCount; i++)
    {
        strip[i].Show();
    }

    delay(delayTime);

    for (byte i = 0; i < stripCount; i++)
    {
        strip[i].RotateRight(1);
        strip[i].Show();
    }

    delay(delayTime);
}

/////////////////////////////////////////////////////////////

void whiteFade(byte delayTime, byte brightness, byte maxBrightness)
{
    for (int i = 0; i < stripCount; i++)
    {
        for (int j = 0; j < PixelCount[i]; j++)
        {
            strip[i].SetPixelColor(j, RgbColor(brightness, brightness, brightness));
        }
        strip[i].Show();
    }

    byte b = random(stripCount);
    byte d = random(stripCount);
    byte a = random(PixelCount[b]);
    byte c = random(PixelCount[d]);

    for (int j = 0; j <= maxBrightness; j += 4)
    {
        strip[b].SetPixelColor(a, RgbColor(j, j, j));
        strip[d].SetPixelColor(c, RgbColor(j, j, j));
        strip[b].Show();
        strip[d].Show();
        delay(delayTime);
    }
    for (int j = maxBrightness; j >= brightness; j -= 4)
    {
        strip[b].SetPixelColor(a, RgbColor(j, j, j));
        strip[d].SetPixelColor(c, RgbColor(j, j, j));
        strip[d].Show();
        strip[b].Show();
        delay(delayTime);
    }
}

////////////////////////////////////////////////////////////

void rainbowFade(byte delayTime)
{
    // allOffNow();

    for (byte i = 0; i < stripCount; i++)
    {
        byte a = random(PixelCount[i]);
        byte b = random(PixelCount[i]);
        RgbColor startColor = RgbColor(random(150), random(150), random(150));
        RgbColor endColor = RgbColor(random(150), random(150), random(150));

        // RgbColor updatedColor = RgbColor::LinearBlend(startColor, endColor, c);

        // for (int j = 0; j < PixelCount[i]; j++)
        // {
        strip[i].SetPixelColor(a, colorGamma.Correct(startColor));
        strip[i].Show();
        delay(delayTime);

        // RgbColor updatedColor = RgbColor::LinearBlend(startColor, endColor, c);

        // // for (int j = 0; j < PixelCount[i]; j++)
        // // {
        //     strip[i].SetPixelColor(j, colorGamma.Correct(updatedColor));
        //     strip[i].Show();
        //     delay(delayTime);
        // }
        // for (int j = 200; j >= 0; j -= 2)
        // {
        // strip[i].SetPixelColor(a, RgbColor(j, j, j));
        // strip[i].Show();
        // delay(delayTime);
        // }
    }
}

////////////////////////////////////////////////////////////

void pulse(byte delayTime)
{
    allOffNow();

    for (byte j = 0; j < 150; j += 2)
    {
        strip[0].SetPixelColor(6, RgbColor(j, j, j));
        strip[0].Show();
        delay(delayTime);
    }

    for (byte k = 0; k < 6; k++)
    {
        for (byte j = 0; j < 150; j += 2)
        {
            for (byte i = 0; i < stripCount; i++)
            {
                if (i == 0)
                {
                    strip[0].SetPixelColor(k + 7, RgbColor(j, j, j));
                    strip[0].SetPixelColor(5 - k, RgbColor(j, j, j));
                }
                else
                {
                    strip[i].SetPixelColor(k, RgbColor(j, j, j));
                }
                strip[i].Show();
                delay(delayTime);
            }
        }
    }

    strip[0].SetPixelColor(6, RgbColor(0, 0, 0));

    for (int k = 0; k < 6; k++)
    {
        for (int j = 150; j >= 0; j -= 2)
        {
            for (int i = 0; i < stripCount; i++)
            {
                if (i == 0)
                {
                    strip[0].SetPixelColor(k + 7, RgbColor(j, j, j));
                    strip[0].SetPixelColor(5 - k, RgbColor(j, j, j));
                }
                else
                {
                    strip[i].SetPixelColor(k, RgbColor(j, j, j));
                }
                strip[i].Show();
                delay(delayTime);
            }
        }
    }
}

////////////////////////////////////////////////////////////

void rainbow(byte delayTime)
{
    allOffNow();

    x = random(8);

    switch (x)
    {
    case 0:
        randColor = red1;
        break;

    case 1:
        randColor = green1;
        break;

    case 2:
        randColor = blue1;
        break;

    case 3:
        randColor = yellow1;
        break;

    case 4:
        randColor = purple1;
        break;

    case 5:
        randColor = orange1;
        break;

    case 6:
        randColor = pink1;
        break;

    case 7:
        randColor = cyan1;
        break;
    }

    for (int j = 0; j < 150; j += 2)
    {
        strip[0].SetPixelColor(6, randColor);
        strip[0].Show();
        delay(delayTime);
    }

    for (int k = 0; k < 6; k++)
    {
        for (int j = 0; j < 150; j += 4)
        {
            for (int i = 0; i < stripCount; i++)
            {
                if (i == 0)
                {
                    strip[0].SetPixelColor(k + 7, randColor);
                    strip[0].SetPixelColor(5 - k, randColor);
                }
                else
                {
                    strip[i].SetPixelColor(k, randColor);
                }

                strip[i].Show();
                delay(delayTime);
            }
        }
    }

    strip[0].SetPixelColor(6, RgbColor(0, 0, 0));

    for (int k = 0; k < 6; k++)
    {
        for (int j = 150; j >= 0; j -= 4)
        {
            for (int i = 0; i < stripCount; i++)
            {
                if (i == 0)
                {
                    strip[0].SetPixelColor(k + 7, RgbColor(0, 0, 0));
                    strip[0].SetPixelColor(5 - k, RgbColor(0, 0, 0));
                }
                else
                {
                    strip[i].SetPixelColor(k, RgbColor(0, 0, 0));
                }
                strip[i].Show();
                delay(delayTime);
            }
        }
    }
}

////////////////////////////////////////////////////////////

void radiate(byte delayTime)
{
    allOffNow();

    for (byte j = 0; j < 250; j += 2)
    {
        for (byte i = 0; i < stripCount; i++)
        {
            if (i == 0)
            {
                strip[0].SetPixelColor(5, RgbColor(j, j, j));
                strip[0].SetPixelColor(7, RgbColor(j, j, j));
            }
            else
            {
                strip[i].SetPixelColor(0, RgbColor(j, j, j));
            }

            strip[i].Show();
            delay(delayTime);
        }
    }

    for (byte j = 252; j > 0; j -= 2)
    {
        for (byte i = 0; i < stripCount; i++)
        {
            if (i == 0)
            {
                strip[0].SetPixelColor(5, RgbColor(j, j, j));
                strip[0].SetPixelColor(7, RgbColor(j, j, j));
            }
            else
            {
                strip[i].SetPixelColor(0, RgbColor(j, j, j));
            }

            strip[i].Show();
            delay(delayTime);
        }
    }

    for (byte j = 1; j < 6; j++)
    {
        for (byte k = 0; k < 150; k += 3)
        {
            for (byte i = 0; i < stripCount; i++)
            {
                if (i == 0)
                {
                    strip[0].SetPixelColor(5 - j, RgbColor(k, k, k));
                    strip[0].SetPixelColor(7 + j, RgbColor(k, k, k));

                    if (j >= 2)
                    {
                        strip[i].SetPixelColor(6 - j, RgbColor(0, 0, 0));
                        strip[i].SetPixelColor(6 + j, RgbColor(0, 0, 0));
                    }
                }
                else
                {
                    strip[i].SetPixelColor(j, RgbColor(k, k, k));

                    if (j >= 2)
                    {
                        strip[i].SetPixelColor(j - 1, RgbColor(0, 0, 0));
                    }
                }

                strip[i].Show();
                // delay(delayTime);
            }
        }
    }
}

////////////////////////////////////////////////////////////

void spiral(int delayTime)
{
    strip[0].SetPixelColor(6, white1);
    strip[0].Show();
    delay(delayTime);

    allOffNow();

    for (int j = 0; j < 5; j++)
    {
        for (int k = 0; k < stripCount; k++)
        {

            if (k == 0)
            {
                strip[0].SetPixelColor(5 - j, white1);
                strip[0].SetPixelColor(7 + j, white1);
            }

            else
            {
                strip[k].SetPixelColor(j, white1);
            }
            strip[k].Show();
            // SerialUSB.println(i);
        }

        // delayTime = pow(delayTime,1.6);
        delayTime += 40;
        delay(delayTime);
        allOffNow();
    }

    for (int j = 5; j > 0; j--)
    {
        for (int k = 0; k < stripCount; k++)
        {

            if (k == 0)
            {
                strip[0].SetPixelColor(5 - j, white1);
                strip[0].SetPixelColor(7 + j, white1);
            }

            else
            {
                strip[k].SetPixelColor(j, white1);
            }
            strip[k].Show();
            // SerialUSB.println(i);
        }
        delayTime -= 40;
        delay(delayTime);
        allOffNow();
    }
}

////////////////////////////////////////////////////////////

void allOffNow()
{
    for (byte m = 0; m < stripCount; m++)
    {
        for (byte j = 0; j < PixelCount[m]; j++)
        {
            strip[m].SetPixelColor(j, RgbColor(0, 0, 0));
            strip[m].Show();
        }
    }
}

Credits

Mitch K

Mitch K

5 projects • 22 followers
Maker, designer, & all around fun to be around!

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