ESP32, WS2812B + Homespan / HomeKit Dimming

Projects General Guidance
1

Hello guys, im new here.
I want to build a few wall lights using the ESP32, WS2812B and a power supply.
Im using Homespan for HomeKit.
It works well so far but there is just a thing that I would love to have.
When I switch on the light, I would love that the Led´s turns on smoothly like a soft transition. Same for Color changes or switching off the light.
Does anyone have an idea?

Here the Code that im using:


#if defined(CONFIG_IDF_TARGET_ESP32)

  #define NEOPIXEL_RGB_PIN       26
  #define NEOPIXEL_RGBW_PIN      32
  #define DOTSTAR_DATA_PIN       33
  #define DOTSTAR_CLOCK_PIN      27
  #define DEVICE_SUFFIX          ""

#elif defined(CONFIG_IDF_TARGET_ESP32S2)

  #define NEOPIXEL_RGB_PIN       17
  #define NEOPIXEL_RGBW_PIN      38
  #define DOTSTAR_DATA_PIN       3
  #define DOTSTAR_CLOCK_PIN      7
  #define DEVICE_SUFFIX          "-S2"

#elif defined(CONFIG_IDF_TARGET_ESP32C3)

  #define NEOPIXEL_RGB_PIN       0
  #define NEOPIXEL_RGBW_PIN      3
  #define DOTSTAR_DATA_PIN       7
  #define DOTSTAR_CLOCK_PIN      2

  #define DEVICE_SUFFIX          "-C3"

#endif
 
#include "HomeSpan.h"

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

struct NeoPixel_RGB : Service::LightBulb {      // Addressable single-wire RGB LED Strand (e.g. NeoPixel)
 
  Characteristic::On power{0,true};
  Characteristic::Hue H{0,true};
  Characteristic::Saturation S{0,true};
  Characteristic::Brightness V{100,true};
  Pixel *pixel;
  int nPixels;
  
  NeoPixel_RGB(uint8_t pin, int nPixels) : Service::LightBulb(){

    V.setRange(5,100,1);                      // sets the range of the Brightness to be from a min of 5%, to a max of 100%, in steps of 1%
    pixel=new Pixel(pin);                     // creates Pixel RGB LED on specified pin
    nPixels=37;
    this->nPixels=nPixels;                    // save number of Pixels in this LED Strand
    update();                                 // manually call update() to set pixel with restored initial values
  }

  boolean update() override {

    int p=power.getNewVal();
    
    float h=H.getNewVal<float>();       // range = [0,360]
    float s=S.getNewVal<float>();       // range = [0,100]
    float v=V.getNewVal<float>();       // range = [0,100]

    Pixel::Color color;

    pixel->set(color.HSV(h*p, s*p, v*p),nPixels);       // sets all nPixels to the same HSV color
          
    return(true);  
  }
};
void setup() {
  
  Serial.begin(115200);
 
  homeSpan.begin(Category::Lighting,"Pixel LEDS" DEVICE_SUFFIX);

  SPAN_ACCESSORY();                                             // create Bridge (note this sketch uses the SPAN_ACCESSORY() macro, introduced in v1.5.1 --- see the HomeSpan API Reference for details on this convenience macro)

  SPAN_ACCESSORY("Neo RGB");
    new NeoPixel_RGB(NEOPIXEL_RGB_PIN,8);                       // create 8-LED NeoPixel RGB Strand with full color control


}

void loop() {
  homeSpan.poll();
}

Thank you and best regards

2

From black (0,0,0) to what color?
It looks like this sketch has no "turn on LEDs when lights turn on" or "turn off LEDs when lights turn off."

3

This topic was automatically closed 180 days after the last reply. New replies are no longer allowed.