Controlling UCS2904 LED flood with Neopixel library

[havetutor]

I'm attempting to control one of these UCS2904 floodlights using the Neopixel library; according to the chip documentation it uses 800khz and RGBW ordering, both of which are set in my arduino code which has been tested on both an Uno and a Mega. Regardless of board, the floodlight is powering on with its blue powerup behavior and then not appearing to respond to any instructions from either arduino. The same boards and code can operate 12V WS2811 strings without issue. I'm hoping someone has worked with these chips or lights before and can provide some insight!

Code:

#include <Adafruit_NeoPixel.h>

const int neoPixelPin = 10;  // control pin
const int numPixels = 1;    // number of pixels

// set up strip:
 // PARAMETERS BELOW ARE FOR UCS2904 CHIP - RGBW, 800khz
Adafruit_NeoPixel strip = Adafruit_NeoPixel(numPixels, neoPixelPin, NEO_RGBW + NEO_KHZ800);
unsigned long color = 0xFF;   // start with blue

void setup() {
  strip.begin();    // initialize pixel strip
  strip.clear();    // turn all LEDs off
  strip.show();     // refresh strip
  Serial.begin(9600);
}

void loop() {

  // loop over all the pixels:
  for (int pixel = 0; pixel < numPixels; pixel++) {
    strip.setPixelColor(pixel, color);// set the color for this pixel
    if (pixel > 0) {
      strip.setPixelColor(pixel - 1, 0); // turn off the last pixel
    }
    Serial.println(color, HEX);
    strip.show();    // refresh the strip
    delay(500);
  }
  Serial.println(color, HEX);
 delay(3000);       // wait 1 sec before next color run.
 
   if (color == 0xFF000000) { // if the color is white (0xFF000000)
     color = 0xFF;            // then set it back to blue
     // note: if you are using RGB instead of RGBW pixels, use
     // 0xFF0000 for your highest color instead of 0xFF000000
   } else {
     color = color << 8;      // shift the lit color (value FF, or 255) to the next color
   }

  strip.clear();             // clear the strip at the end of a color run
}

[xfpd]

You have the 4 channel controller... here is a link about the 12 channel controller.

RGBW LED Strip with generic controller (f.e. SK6812RGBW)

From my other RGBW LED strip post it seems that there is some need for RGBW sample sketches, so I splitted this into a new thread for generic RGBW types (my UCS2912-based is a very special one). 1st a note: RGBW LEDs might draw up to 80mA with all colors + white at full brightness! That means that a 60-pixel strip can draw up to 60x 80 = 4800mA, so you should use a 5A power supply; for a 144-pixel strip its max 11520mA = 12A power supply! Unfortunately the tutorials for Neopixel and the Adafru…

[Grumpy_Mike]

The data sheet for this device is not very helpful, like most far East data sheets.

If you want to down load it Just click here

The thing with the 12V version is that each control chip will control 3 LEDs at once. So that they are not individually addressable.

@havetutor

I'm hoping someone has worked with these chips or lights before and can provide some insight

Do not be cheeky, what makes you think that some one has to have worked with something before in order to "know" about things. All they need is the right information.

So looking at the page you posted for where you got them from it mentions that the interface was

Connectivity Protocol ‎SPI

This rules out any compatibility with the way that the Adafruit library works. Which does not use an SPI protocol.

Sadly, as I said, the data sheet does not describe the protocol to communicate at all. So unless you can find that you are stuck, for the time being.