Yup just making sure his sketch will be able to control the color fading with a single neopixel as i have no use for animations like the theatre chase, rainbow etc which are included in the at sketch for rings and strands that include many neopixels.

Again - if you have a ring with 128 neopixels, your code must address 128 neopixels.

It's not about whether you want animations or not. That's not the point. If you read about how a neopixel works, each one is addressable based on the series.

I'll have to read up on the serial sketch provided by Perry. Normally in a sketch you define the number of pixels like 1 or 12 or 128. so the animations will scale according to the number of neopixels you have. Maybe in his sketch you send out the number of neopixels in each command control line since its a live control.

Again, you have to send a command to each neo pixel because they are addressed within the serial connection, starting at 0x00 to 0x01 and 0x02 so on

As far as I know 'neopixel' is a product line produced by Adafruit. You had asked how they differ from RGB LED's.

If you look at that sketch you define your neopixel type with this line

    // Constructor - calls base-class constructor to initialize strip
    NeoPatterns(uint16_t pixels, uint8_t pin, uint8_t type, void (*callback)())
    :Adafruit_NeoPixel(pixels, pin, type)

Maybe you can just enter a 1 there for pixels. Then you could use the fade function tailored to your needs to control that one pixel.

 // Initialize for a Fade
    void Fade(uint32_t color1, uint32_t color2, uint16_t steps, uint8_t interval, direction dir = FORWARD)
    {
        ActivePattern = FADE;
        Interval = interval;
        TotalSteps = steps;
        Color1 = color1;
        Color2 = color2;
        Index = 0;
        Direction = dir;
    }
    
    // Update the Fade Pattern
    void FadeUpdate()

I would need to research this combo to get it to work but I would start there. Realize this is not my script and I did not write the tutorial.

Perry

OK i could not find the call for number of pixels. Got it, in the constructor. I see setting for pixel number and which pin its on, do you know what "type" means, i've not seen that in a sketch before.

Sorry i thought you had written up that tut. But that is exactly the two functions , color and fade i'm looking to adjust. I'll look into it further.

@DJ, Got it! Thanks.

'type' refers to the type of LED's in the strip. RGB or RGBW are options. There are codes provided by Adafruit that I put in there. They came from their tutorial page.

I took a look in the Arduino IDE and it looks pretty easy to figure out. There are some test codes in there.

// Parameter 1 = number of pixels in strip
// Parameter 2 = Arduino pin number (most are valid)
// Parameter 3 = pixel type flags, add together as needed:
//   NEO_KHZ800  800 KHz bitstream (most NeoPixel products w/WS2812 LEDs)
//   NEO_KHZ400  400 KHz (classic 'v1' (not v2) FLORA pixels, WS2811 drivers)
//   NEO_GRB     Pixels are wired for GRB bitstream (most NeoPixel products)
//   NEO_RGB     Pixels are wired for RGB bitstream (v1 FLORA pixels, not v2)
//   NEO_RGBW    Pixels are wired for RGBW bitstream (NeoPixel RGBW products)
Adafruit_NeoPixel strip = Adafruit_NeoPixel(60, PIN, NEO_GRB + NEO_KHZ800);

Those are all the parameters to set it up. I infer from this that you probable could make it a 2 LED strip with left eye being 1 and the right eye 2 since the Flora LED's can be daisy chained.

There may be easier ways to do this. Would be nice to go directly from EZB to a neopixel without intermediate hardware.