print_predefined_colors.ino

//***************************************************************
// Play through all the predefined web colors from here:
// https://github.com/FastLED/FastLED/wiki/Pixel-reference#predefined-colors-list
// Can also be found here:
// https://fastled.io/docs/3.1/struct_c_r_g_b.html
//
// From the webpage:
// "Please note - these predefined colors are defined using the
// W3C RGB definitions. These definitions are designed with RGB
// monitors in mind, not RGB leds, and so the colors that you
// get on LED strips may be a bit different than you're expecting.
// In our experience, the colors are often too pale, or washed
// out (overly-desaturated)."
//
// This lights up the first 8 pixels of the LED strip with each
// color, one color at a time.  Open your serial monitor to see
// the color number/name/hex info of the current color being
// displayed.
//
//
// Marc Miller, Nov 2022
//***************************************************************

#include "FastLED.h"
#define DATA_PIN    11
#define CLOCK_PIN   13
#define LED_TYPE    LPD8806
#define COLOR_ORDER GRB
#define NUM_LEDS    32
#define BRIGHTNESS  255
CRGB leds[NUM_LEDS];


// Predefined colors
const char *predefinedColors[] = {
    "AliceBlue", "0xF0F8FF",
    "Amethyst", "0x9966CC",
    "AntiqueWhite", "0xFAEBD7",
    "Aqua", "0x00FFFF",
    "Aquamarine", "0x7FFFD4",
    "Azure", "0xF0FFFF",
    "Beige", "0xF5F5DC",
    "Bisque", "0xFFE4C4",
    "Black", "0x000000",
    "BlanchedAlmond", "0xFFEBCD",
    "Blue", "0x0000FF",
    "BlueViolet", "0x8A2BE2",
    "Brown", "0xA52A2A",
    "BurlyWood", "0xDEB887",
    "CadetBlue", "0x5F9EA0",
    "Chartreuse", "0x7FFF00",
    "Chocolate", "0xD2691E",
    "Coral", "0xFF7F50",
    "CornflowerBlue", "0x6495ED",
    "Cornsilk", "0xFFF8DC",
    "Crimson", "0xDC143C",
    "Cyan", "0x00FFFF",
    "DarkBlue", "0x00008B",
    "DarkCyan", "0x008B8B",
    "DarkGoldenrod", "0xB8860B",
    "DarkGray", "0xA9A9A9",
    "DarkGrey", "0xA9A9A9",
    "DarkGreen", "0x006400",
    "DarkKhaki", "0xBDB76B",
    "DarkMagenta", "0x8B008B",
    "DarkOliveGreen", "0x556B2F",
    "DarkOrange", "0xFF8C00",
    "DarkOrchid", "0x9932CC",
    "DarkRed", "0x8B0000",
    "DarkSalmon", "0xE9967A",
    "DarkSeaGreen", "0x8FBC8F",
    "DarkSlateBlue", "0x483D8B",
    "DarkSlateGray", "0x2F4F4F",
    "DarkSlateGrey", "0x2F4F4F",
    "DarkTurquoise", "0x00CED1",
    "DarkViolet", "0x9400D3",
    "DeepPink", "0xFF1493",
    "DeepSkyBlue", "0x00BFFF",
    "DimGray", "0x696969",
    "DimGrey", "0x696969",
    "DodgerBlue", "0x1E90FF",
    "FireBrick", "0xB22222",
    "FloralWhite", "0xFFFAF0",
    "ForestGreen", "0x228B22",
    "Fuchsia", "0xFF00FF",
    "Gainsboro", "0xDCDCDC",
    "GhostWhite", "0xF8F8FF",
    "Gold", "0xFFD700",
    "Goldenrod", "0xDAA520",
    "Gray", "0x808080",
    "Grey", "0x808080",
    "Green", "0x008000",
    "GreenYellow", "0xADFF2F",
    "Honeydew", "0xF0FFF0",
    "HotPink", "0xFF69B4",
    "IndianRed", "0xCD5C5C",
    "Indigo", "0x4B0082",
    "Ivory", "0xFFFFF0",
    "Khaki", "0xF0E68C",
    "Lavender", "0xE6E6FA",
    "LavenderBlush", "0xFFF0F5",
    "LawnGreen", "0x7CFC00",
    "LemonChiffon", "0xFFFACD",
    "LightBlue", "0xADD8E6",
    "LightCoral", "0xF08080",
    "LightCyan", "0xE0FFFF",
    "LightGoldenrodYellow", "0xFAFAD2",
    "LightGreen", "0x90EE90",
    "LightGrey", "0xD3D3D3",
    "LightPink", "0xFFB6C1",
    "LightSalmon", "0xFFA07A",
    "LightSeaGreen", "0x20B2AA",
    "LightSkyBlue", "0x87CEFA",
    "LightSlateGray", "0x778899",
    "LightSlateGrey", "0x778899",
    "LightSteelBlue", "0xB0C4DE",
    "LightYellow", "0xFFFFE0",
    "Lime", "0x00FF00",
    "LimeGreen", "0x32CD32",
    "Linen", "0xFAF0E6",
    "Magenta", "0xFF00FF",
    "Maroon", "0x800000",
    "MediumAquamarine", "0x66CDAA",
    "MediumBlue", "0x0000CD",
    "MediumOrchid", "0xBA55D3",
    "MediumPurple", "0x9370DB",
    "MediumSeaGreen", "0x3CB371",
    "MediumSlateBlue", "0x7B68EE",
    "MediumSpringGreen", "0x00FA9A",
    "MediumTurquoise", "0x48D1CC",
    "MediumVioletRed", "0xC71585",
    "MidnightBlue", "0x191970",
    "MintCream", "0xF5FFFA",
    "MistyRose", "0xFFE4E1",
    "Moccasin", "0xFFE4B5",
    "NavajoWhite", "0xFFDEAD",
    "Navy", "0x000080",
    "OldLace", "0xFDF5E6",
    "Olive", "0x808000",
    "OliveDrab", "0x6B8E23",
    "Orange", "0xFFA500",
    "OrangeRed", "0xFF4500",
    "Orchid", "0xDA70D6",
    "PaleGoldenrod", "0xEEE8AA",
    "PaleGreen", "0x98FB98",
    "PaleTurquoise", "0xAFEEEE",
    "PaleVioletRed", "0xDB7093",
    "PapayaWhip", "0xFFEFD5",
    "PeachPuff", "0xFFDAB9",
    "Peru", "0xCD853F",
    "Pink", "0xFFC0CB",
    "Plaid", "0xCC5533",
    "Plum", "0xDDA0DD",
    "PowderBlue", "0xB0E0E6",
    "Purple", "0x800080",
    "Red", "0xFF0000",
    "RosyBrown", "0xBC8F8F",
    "RoyalBlue", "0x4169E1",
    "SaddleBrown", "0x8B4513",
    "Salmon", "0xFA8072",
    "SandyBrown", "0xF4A460",
    "SeaGreen", "0x2E8B57",
    "Seashell", "0xFFF5EE",
    "Sienna", "0xA0522D",
    "Silver", "0xC0C0C0",
    "SkyBlue", "0x87CEEB",
    "SlateBlue", "0x6A5ACD",
    "SlateGray", "0x708090",
    "SlateGrey", "0x708090",
    "Snow", "0xFFFAFA",
    "SpringGreen", "0x00FF7F",
    "SteelBlue", "0x4682B4",
    "Tan", "0xD2B48C",
    "Teal", "0x008080",
    "Thistle", "0xD8BFD8",
    "Tomato", "0xFF6347",
    "Turquoise", "0x40E0D0",
    "Violet", "0xEE82EE",
    "Wheat", "0xF5DEB3",
    "White", "0xFFFFFF",
    "WhiteSmoke", "0xF5F5F5",
    "Yellow", "0xFFFF00",
    "YellowGreen", "0x9ACD32",
    "FairyLight", "0xFFE42D",
    "FairyLightNCC", "0xFF9D2A"
};

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

uint8_t numColors = (ARRAY_SIZE(predefinedColors) / 2);


//---------------------------------------------------------------
void setup() {
  Serial.begin(115200);  // Allows serial monitor output
  delay(2000); // startup delay
  FastLED.addLeds<LED_TYPE,DATA_PIN,CLOCK_PIN,COLOR_ORDER>(leds, NUM_LEDS).setCorrection(TypicalLEDStrip);
  FastLED.setBrightness(BRIGHTNESS);
  FastLED.clear();
  FastLED.show();
  Serial.print("\nNumber of predefind colors: ");
  Serial.println(numColors);
  Serial.println("Setup done. \n");
}


//---------------------------------------------------------------
void loop() {

  EVERY_N_MILLISECONDS(500) {

    FastLED.clear();

    static uint8_t i;

    Serial.print("Color ");
    Serial.print(i);
    Serial.print(":\t");
    Serial.print(predefinedColors[i*2]);
    Serial.print("\t\t");

    const char *hexvalue = predefinedColors[(i*2)+1];
    Serial.println(hexvalue);

    for (uint8_t i = 0; i < 8; i++) {
      leds[i] = strtol(hexvalue, NULL, 0);
    }
   
    i++;
    if(i == numColors) {
      i = 0;
      Serial.println();
    }

  }


  FastLED.show();

  delay(1);  // this can be deleted as needed
}