changed the SPI frequency to 2 Mhz.

APA102 can handle MUCH higher frequencies than WS2801, so 2Mhz is no big deal for them


Former-commit-id: 814faa648e4f39d7105710ff872bde00aaeaada9

dependencies/LightberryHDUSBAPA1021.1/LightberryHDUSBAPA1021.1.ino

@@ -126,7 +126,7 @@ void setup()
   SPI.begin();
   SPI.setBitOrder(MSBFIRST);
   SPI.setDataMode(SPI_MODE0);
-  SPI.setClockDivider(SPI_CLOCK_DIV16); // 1 MHz max, else flicker
+  SPI.setClockDivider(SPI_CLOCK_DIV8); // 2Mhz
 
   // Issue test pattern to LEDs on startup.  This helps verify that
   // wiring between the Arduino and LEDs is correct.  Not knowing the