kernel_demo.ino

#define DEFAULT_BRIGHTNESS 1
#define NUM_PIXELS 8 
float pixels[NUM_PIXELS];

#define KERNEL_SIZE 5
float kernel[KERNEL_SIZE] = { 1, 0.8, 0.4, 0.8, 1 };

int kernelPos = -1 * KERNEL_SIZE;


void resetPixels() {
	for(int i=0;i<NUM_PIXELS;i++) {
		pixels[i] = DEFAULT_BRIGHTNESS;
	}
}

void calcPixels() {
	for(int i=0;i<NUM_PIXELS;i++) {
		int pixelIdx = kernelPos + i;
		if ((pixelIdx > 0) && (pixelIdx < NUM_PIXELS)) {
			int kernelIdx = (i % KERNEL_SIZE);
			pixels[pixelIdx] = pixels[pixelIdx] * kernel[pixelIdx];
		}
	}
}





void setup() {

}

void loop() {
    resetPixels();
    calcPixels();
    
    kernelPos++;
    if (kernelPos > (NUM_PIXELS + KERNEL_SIZE)) {
        kernelPos = -1 * KERNEL_SIZE;
    }

}