How to create a certain spectrum?

Archive FastLED Archive
1

How to create a certain spectrum? I would like to get a snapshot like the KenkoLight ™ lamp. Tell me please.

2

Please provide more information about what you are wanting to do. Do you have a link to or image of what you are asking about?

3

I would like to receive such a spectrum:

4

The light spectrum from the typical addressable RGB LED light is going to be rather spikey and a tough place to start from. What you’re looking for might be possible, but having a really high CRI value is not what addressable RGB LEDs are known for.

5

#define NUM_LEDS 20

// № контакта подключаемого к ленте
// уровень яркости 0-255
// тип ленты (нужно для библиотеки)
// rgb, rbg, gbr,grb,brg,bgr зависит от ленты
#define DATA_PIN 5
#define HUE 156 // оттенок
//#define BRIGHTNESS 0 //яркость
#define SATURATION 30 //насыщенность
#define LED_TYPE WS2811
#define COLOR_ORDER BRG //работа, GRB-дом

// Определяем массив светодиодов

CRGBArray<NUM_LEDS > leds;

int gBright = 10; // базовая яркость
int brightStep = 1;//шаг изменения яркости

void setup()
{
FastLED.addLeds<LED_TYPE, DATA_PIN, COLOR_ORDER>(leds, NUM_LEDS).setCorrection(TypicalLEDStrip);
}

void loop() {
//static CEveryNSeconds newGBright(1);//вводим переменную цикла
static CEveryNMilliseconds newGBright(100);//вводим переменную цикла
for (; gBright < 255 :wink:
{
for (int i = 0; i < NUM_LEDS; i++) {
leds[i].setHSV( HUE, SATURATION, gBright);
}
if ( newGBright ) {
gBright++;
}
FastLED.show();
}
//по окончании цикла наращивания яркости, включаем белый свет
if (gBright==255)
{
for (int i = 0; i < NUM_LEDS; i++) {
leds[i] = CRGB::White;
}
FastLED.show();
}

}

Will it be something similar?
int brightStep = 1; The transition to brightness is too noticeable. How to get smoothly?

6

I do not speak English, so do not quite understand your answer. Understand that it is possible, but difficult to do. Sad. Thank you. And with the smooth, something will advise?

7

You might need to make the transition faster to get a smoother look.
Change:
static CEveryNMilliseconds newGBright(100);//вводим
To:
static CEveryNMilliseconds newGBright(10);//вводим

Or maybe this technique could help?

Since you seem interested in color spectrum, have a look at this too:

8

Thank you. I’ll study.