takuya ichise / TI_NEOPIXEL_SPI

A library for SPI control of adafruit's neopixel ring and addressable LEDs.

Dependencies:   PixelArray

Dependents:   TI_NEOPIXEL_SPI_SAMPLE

TI_NEOPIXEL_SPI.cpp@0:c28aa7d4f97e, 2019-07-09 (annotated)

Committer:
tichise
Date:
Tue Jul 09 15:25:16 2019 +0000
Revision:
0:c28aa7d4f97e
Child:
2:0148ac5c90fa
new

Who changed what in which revision?

UserRevisionLine numberNew contents of line
tichise 0:c28aa7d4f97e 1 #include "TI_NEOPIXEL_SPI.h"
tichise 0:c28aa7d4f97e 2 #include "mbed.h"
tichise 0:c28aa7d4f97e 3
tichise 0:c28aa7d4f97e 4 TI_NEOPIXEL_SPI::TI_NEOPIXEL_SPI(PinName input) : _ledStrip(input)
tichise 0:c28aa7d4f97e 5 {
tichise 0:c28aa7d4f97e 6 }
tichise 0:c28aa7d4f97e 7
tichise 0:c28aa7d4f97e 8 void TI_NEOPIXEL_SPI::switchLightOff(int count)
tichise 0:c28aa7d4f97e 9 {
tichise 0:c28aa7d4f97e 10
tichise 0:c28aa7d4f97e 11 neopixel::Pixel colors[count];
tichise 0:c28aa7d4f97e 12
tichise 0:c28aa7d4f97e 13 for (int i = 0; i < count; i++)
tichise 0:c28aa7d4f97e 14 {
tichise 0:c28aa7d4f97e 15 colors[i].red = 0;
tichise 0:c28aa7d4f97e 16 colors[i].green = 0;
tichise 0:c28aa7d4f97e 17 colors[i].blue = 0;
tichise 0:c28aa7d4f97e 18 }
tichise 0:c28aa7d4f97e 19
tichise 0:c28aa7d4f97e 20 _ledStrip.update(colors, count);
tichise 0:c28aa7d4f97e 21 }
tichise 0:c28aa7d4f97e 22
tichise 0:c28aa7d4f97e 23 void TI_NEOPIXEL_SPI::switchLightOn(int count)
tichise 0:c28aa7d4f97e 24 {
tichise 0:c28aa7d4f97e 25 neopixel::Pixel colors[count];
tichise 0:c28aa7d4f97e 26
tichise 0:c28aa7d4f97e 27 for (int i = 0; i < count; i++)
tichise 0:c28aa7d4f97e 28 {
tichise 0:c28aa7d4f97e 29 colors[i].red = 50;
tichise 0:c28aa7d4f97e 30 colors[i].green = 10;
tichise 0:c28aa7d4f97e 31 colors[i].blue = 170;
tichise 0:c28aa7d4f97e 32 }
tichise 0:c28aa7d4f97e 33
tichise 0:c28aa7d4f97e 34 _ledStrip.update(colors, count);
tichise 0:c28aa7d4f97e 35 }
tichise 0:c28aa7d4f97e 36
tichise 0:c28aa7d4f97e 37 void TI_NEOPIXEL_SPI::changeColor(int count, rgbColor rgbColor)
tichise 0:c28aa7d4f97e 38 {
tichise 0:c28aa7d4f97e 39 neopixel::Pixel colors[count];
tichise 0:c28aa7d4f97e 40
tichise 0:c28aa7d4f97e 41 for (int i = 0; i < count; i++)
tichise 0:c28aa7d4f97e 42 {
tichise 0:c28aa7d4f97e 43 colors[i].red = rgbColor.red;
tichise 0:c28aa7d4f97e 44 colors[i].green = rgbColor.green;
tichise 0:c28aa7d4f97e 45 colors[i].blue = rgbColor.blue;
tichise 0:c28aa7d4f97e 46 }
tichise 0:c28aa7d4f97e 47
tichise 0:c28aa7d4f97e 48 _ledStrip.update(colors, count);
tichise 0:c28aa7d4f97e 49 }
tichise 0:c28aa7d4f97e 50
tichise 0:c28aa7d4f97e 51 void TI_NEOPIXEL_SPI::changePointColor(int count, rgbColor topColor, rgbColor bottomColor)
tichise 0:c28aa7d4f97e 52 {
tichise 0:c28aa7d4f97e 53 neopixel::Pixel colors[count];
tichise 0:c28aa7d4f97e 54
tichise 0:c28aa7d4f97e 55 for (int i = 0; i < count; i++)
tichise 0:c28aa7d4f97e 56 {
tichise 0:c28aa7d4f97e 57 if (i == 0)
tichise 0:c28aa7d4f97e 58 {
tichise 0:c28aa7d4f97e 59 colors[i].red = topColor.red;
tichise 0:c28aa7d4f97e 60 colors[i].green = topColor.green;
tichise 0:c28aa7d4f97e 61 colors[i].blue = topColor.blue;
tichise 0:c28aa7d4f97e 62 }
tichise 0:c28aa7d4f97e 63 else if (i == count / 2)
tichise 0:c28aa7d4f97e 64 {
tichise 0:c28aa7d4f97e 65 colors[i].red = bottomColor.red;
tichise 0:c28aa7d4f97e 66 colors[i].green = bottomColor.green;
tichise 0:c28aa7d4f97e 67 colors[i].blue = bottomColor.blue;
tichise 0:c28aa7d4f97e 68 }
tichise 0:c28aa7d4f97e 69 else
tichise 0:c28aa7d4f97e 70 {
tichise 0:c28aa7d4f97e 71 colors[i].red = 0;
tichise 0:c28aa7d4f97e 72 colors[i].green = 0;
tichise 0:c28aa7d4f97e 73 colors[i].blue = 0;
tichise 0:c28aa7d4f97e 74 }
tichise 0:c28aa7d4f97e 75 }
tichise 0:c28aa7d4f97e 76
tichise 0:c28aa7d4f97e 77 _ledStrip.update(colors, count);
tichise 0:c28aa7d4f97e 78 }
tichise 0:c28aa7d4f97e 79
tichise 0:c28aa7d4f97e 80 void TI_NEOPIXEL_SPI::circle(int count, rgbColor rgbColor)
tichise 0:c28aa7d4f97e 81 {
tichise 0:c28aa7d4f97e 82 for (int j = 0; j < count; j++)
tichise 0:c28aa7d4f97e 83 {
tichise 0:c28aa7d4f97e 84 neopixel::Pixel colors[count];
tichise 0:c28aa7d4f97e 85
tichise 0:c28aa7d4f97e 86 for (int i = 0; i < count; i++)
tichise 0:c28aa7d4f97e 87 {
tichise 0:c28aa7d4f97e 88 if (j >= i)
tichise 0:c28aa7d4f97e 89 {
tichise 0:c28aa7d4f97e 90 colors[i].red = rgbColor.red;
tichise 0:c28aa7d4f97e 91 colors[i].green = rgbColor.green;
tichise 0:c28aa7d4f97e 92 colors[i].blue = rgbColor.blue;
tichise 0:c28aa7d4f97e 93 }
tichise 0:c28aa7d4f97e 94 else
tichise 0:c28aa7d4f97e 95 {
tichise 0:c28aa7d4f97e 96 colors[i].red = 0;
tichise 0:c28aa7d4f97e 97 colors[i].green = 0;
tichise 0:c28aa7d4f97e 98 colors[i].blue = 0;
tichise 0:c28aa7d4f97e 99 }
tichise 0:c28aa7d4f97e 100 }
tichise 0:c28aa7d4f97e 101
tichise 0:c28aa7d4f97e 102 _ledStrip.update(colors, count);
tichise 0:c28aa7d4f97e 103 wait(0.07);
tichise 0:c28aa7d4f97e 104 }
tichise 0:c28aa7d4f97e 105 }
tichise 0:c28aa7d4f97e 106
tichise 0:c28aa7d4f97e 107 void TI_NEOPIXEL_SPI::chase(int count, int bufferCount, rgbColor c1, rgbColor c2)
tichise 0:c28aa7d4f97e 108 {
tichise 0:c28aa7d4f97e 109 int virtualCount = count + bufferCount;
tichise 0:c28aa7d4f97e 110 neopixel::Pixel colors[virtualCount];
tichise 0:c28aa7d4f97e 111
tichise 0:c28aa7d4f97e 112 for (int j = 0; j < virtualCount; j++)
tichise 0:c28aa7d4f97e 113 {
tichise 0:c28aa7d4f97e 114 colors[j].red = c2.red;
tichise 0:c28aa7d4f97e 115 colors[j].green = c2.green;
tichise 0:c28aa7d4f97e 116 colors[j].blue = c2.blue;
tichise 0:c28aa7d4f97e 117 }
tichise 0:c28aa7d4f97e 118
tichise 0:c28aa7d4f97e 119 _ledStrip.update(colors, virtualCount);
tichise 0:c28aa7d4f97e 120
tichise 0:c28aa7d4f97e 121 for (int j = 0; j < virtualCount + bufferCount; j++)
tichise 0:c28aa7d4f97e 122 {
tichise 0:c28aa7d4f97e 123 colors[j].red = c1.red;
tichise 0:c28aa7d4f97e 124 colors[j].green = c1.green;
tichise 0:c28aa7d4f97e 125 colors[j].blue = c1.blue;
tichise 0:c28aa7d4f97e 126
tichise 0:c28aa7d4f97e 127 colors[j - bufferCount].red = c2.red;
tichise 0:c28aa7d4f97e 128 colors[j - bufferCount].green = c2.green;
tichise 0:c28aa7d4f97e 129 colors[j - bufferCount].blue = c2.blue;
tichise 0:c28aa7d4f97e 130
tichise 0:c28aa7d4f97e 131 _ledStrip.update(colors, virtualCount);
tichise 0:c28aa7d4f97e 132 wait(0.05);
tichise 0:c28aa7d4f97e 133 }
tichise 0:c28aa7d4f97e 134 }
tichise 0:c28aa7d4f97e 135
tichise 0:c28aa7d4f97e 136 void TI_NEOPIXEL_SPI::circleRainbow(int count)
tichise 0:c28aa7d4f97e 137 {
tichise 0:c28aa7d4f97e 138 for (int j = 0; j < count; j++)
tichise 0:c28aa7d4f97e 139 {
tichise 0:c28aa7d4f97e 140 neopixel::Pixel colors[count];
tichise 0:c28aa7d4f97e 141
tichise 0:c28aa7d4f97e 142 for (int i = 0; i < count; i++)
tichise 0:c28aa7d4f97e 143 {
tichise 0:c28aa7d4f97e 144 if (i <= j)
tichise 0:c28aa7d4f97e 145 {
tichise 0:c28aa7d4f97e 146 uint8_t phase = 256 / count * i;
tichise 0:c28aa7d4f97e 147 rgbColor rgbColor = convertHsvToRgb(phase / 256.0, 1.0, 1.0);
tichise 0:c28aa7d4f97e 148 colors[i].red = rgbColor.red;
tichise 0:c28aa7d4f97e 149 colors[i].green = rgbColor.green;
tichise 0:c28aa7d4f97e 150 colors[i].blue = rgbColor.blue;
tichise 0:c28aa7d4f97e 151 }
tichise 0:c28aa7d4f97e 152 else
tichise 0:c28aa7d4f97e 153 {
tichise 0:c28aa7d4f97e 154 colors[i].red = 0;
tichise 0:c28aa7d4f97e 155 colors[i].green = 0;
tichise 0:c28aa7d4f97e 156 colors[i].blue = 0;
tichise 0:c28aa7d4f97e 157 }
tichise 0:c28aa7d4f97e 158 }
tichise 0:c28aa7d4f97e 159
tichise 0:c28aa7d4f97e 160 _ledStrip.update(colors, count);
tichise 0:c28aa7d4f97e 161 wait(0.06);
tichise 0:c28aa7d4f97e 162 }
tichise 0:c28aa7d4f97e 163 }
tichise 0:c28aa7d4f97e 164
tichise 0:c28aa7d4f97e 165 rgbColor TI_NEOPIXEL_SPI::convertHsvToRgb(float h, float s, float v)
tichise 0:c28aa7d4f97e 166 {
tichise 0:c28aa7d4f97e 167 int i = floor(h * 6);
tichise 0:c28aa7d4f97e 168 float f = h * 6 - i;
tichise 0:c28aa7d4f97e 169 float p = v * (1 - s);
tichise 0:c28aa7d4f97e 170 float q = v * (1 - f * s);
tichise 0:c28aa7d4f97e 171 float t = v * (1 - (1 - f) * s);
tichise 0:c28aa7d4f97e 172 float r = 0, g = 0, b = 0;
tichise 0:c28aa7d4f97e 173
tichise 0:c28aa7d4f97e 174 switch (i % 6)
tichise 0:c28aa7d4f97e 175 {
tichise 0:c28aa7d4f97e 176 case 0:
tichise 0:c28aa7d4f97e 177 r = v;
tichise 0:c28aa7d4f97e 178 g = t;
tichise 0:c28aa7d4f97e 179 b = p;
tichise 0:c28aa7d4f97e 180 break;
tichise 0:c28aa7d4f97e 181 case 1:
tichise 0:c28aa7d4f97e 182 r = q;
tichise 0:c28aa7d4f97e 183 g = v;
tichise 0:c28aa7d4f97e 184 b = p;
tichise 0:c28aa7d4f97e 185 break;
tichise 0:c28aa7d4f97e 186 case 2:
tichise 0:c28aa7d4f97e 187 r = p;
tichise 0:c28aa7d4f97e 188 g = v;
tichise 0:c28aa7d4f97e 189 b = t;
tichise 0:c28aa7d4f97e 190 break;
tichise 0:c28aa7d4f97e 191 case 3:
tichise 0:c28aa7d4f97e 192 r = p;
tichise 0:c28aa7d4f97e 193 g = q;
tichise 0:c28aa7d4f97e 194 b = v;
tichise 0:c28aa7d4f97e 195 break;
tichise 0:c28aa7d4f97e 196 case 4:
tichise 0:c28aa7d4f97e 197 r = t;
tichise 0:c28aa7d4f97e 198 g = p;
tichise 0:c28aa7d4f97e 199 b = v;
tichise 0:c28aa7d4f97e 200 break;
tichise 0:c28aa7d4f97e 201 case 5:
tichise 0:c28aa7d4f97e 202 r = v;
tichise 0:c28aa7d4f97e 203 g = p;
tichise 0:c28aa7d4f97e 204 b = q;
tichise 0:c28aa7d4f97e 205 break;
tichise 0:c28aa7d4f97e 206 }
tichise 0:c28aa7d4f97e 207
tichise 0:c28aa7d4f97e 208 return (rgbColor){r * 255, g * 255, b * 255};
tichise 0:c28aa7d4f97e 209 }