RBG WS2801 strip led

am using photon and the strip LED WS2801 that has 4 connections
+
CI (clock) connect to A5
DI (Data) connect to A3
-

how can I use the ZeRBGa to interface with this 
should I use the option split ? or switch it to Merge?
how I can control the CI to change the colors 
thanks 
this is sample of code 

#include "blynk/blynk.h"
#include "application.h";


char auth[] = "xxxx";

void setup()
{
  Serial.begin(9600); // See the connection status in Serial Monitor
  Blynk.begin(auth);  // Here your Arduino connects to the Blynk Cloud.
  
   SPI.begin();
    //SPI.setBitOrder(MSBFIRST);
   // SPI.setDataMode(SPI_MODE0);
    SPI.setClockDivider(SPI_CLOCK_DIV128);
}

void loop()
{
  Blynk.run(); // All the Blynk Magic happens here...
  
  
        
         SPI.transfer(0xFF); // controlling 18 leds
        SPI.transfer(0x00);
        SPI.transfer(0x00);
         SPI.transfer(0xFF);
        SPI.transfer(0x00);
        SPI.transfer(0x00);
         SPI.transfer(0xFF);
        SPI.transfer(0x00);
        SPI.transfer(0x00);
         SPI.transfer(0xFF);
        SPI.transfer(0x00);
        SPI.transfer(0x00);
         SPI.transfer(0xFF);
        SPI.transfer(0x00);
        SPI.transfer(0x00);
         SPI.transfer(0xFF);
        SPI.transfer(0x00);
        SPI.transfer(0x00);
         SPI.transfer(0xFF);
        SPI.transfer(0x00);
        SPI.transfer(0x00);
         SPI.transfer(0xFF);
        SPI.transfer(0x00);
        SPI.transfer(0x00);
         SPI.transfer(0xFF);
        SPI.transfer(0x00);
        SPI.transfer(0x00);
     
        
        
        //SPI.transfer(0x00);
}

I strongly recommend you use the http://fastled.io/ library for a project like this. I’ve had great results with that and blynk. I set my zergba to merged and assign it to Vitrual Pin 3 in the example below.

My sketch is something like this:

//#define BLYNK_DEBUG
#define BLYNK_PRINT Serial

#include <SoftwareSerial.h>
#include <BlynkSimpleSerialBLE.h>

#include <SPI.h>
#include <FastLED.h>


char auth[] = "...";

#define NUM_LEDS 20
#define LED_PIN 18
#define COLOR_ORDER GRB
#define CHIPSET     WS2811
CRGB g_leds[NUM_LEDS];
CHSV g_zergba = {33, 255, 255};

void setup() {  
  Serial.begin(115200);
  
  Blynk.begin(auth);

  FastLED.addLeds<CHIPSET, LED_PIN, COLOR_ORDER>(g_leds, NUM_LEDS).setCorrection( TypicalLEDStrip );
  FastLED.setBrightness(100); //optional
  fill_solid( g_leds, NUM_LEDS, CRGB::Black );
  
  FastLED.show();   
}


BLYNK_WRITE(V3) //Zergba
{  
  CRGB c = CRGB(param[0].asInt(), param[1].asInt(), param[2].asInt());
  g_zergba = rgb2hsv_approximate(c);
  g_zergba = CHSV(g_zergba.h, g_zergba.s, 255);
}



void loop() {
  Blynk.run();
  fill_solid( g_leds, NUM_LEDS, g_zergba );
  FastLED.show();
}

helo thanks for ur replay .
am using photon how can I modify this to make it work with photon
thanks
sir

It should more-or-less work, you’ll need to add something like the following at the top:

#include <Ethernet.h>
#include <BlynkSimpleEthernet.h> // This part is for Ethernet stuff

You probably want to take a sketch that does work for your board and copy the bits you need from that.

Alas I don’t have any wifi arduinos (yet), so this is all based on my internet research. You may have to fix some minor issues yourself - good luck!