LPD8806 Strip - Colors and Wheel

Other Hardware LEDs and Multiplexing
2

It suggests your controller is a little weird. By the looks of things the library uses a GRB colour format when sending the data, and presumably your controller requires BRG format.

A work around for this would be to open the LPD8806.cpp file and change this:

void LPD8806::show(void) {
  uint16_t i, index, n3 = numLEDs * 3 + 1; // 3 bytes per LED + 1 for latch
  
  // write 24 bits per pixel
  if (hardwareSPI) {
    for (i=0; i<n3; i++ ) {
      while(!(SPSR & (1<<SPIF))); // Wait for prior byte out
      SPDR = pixels[i];           // Issue new byte
    }
  } else {
    for (i=0; i<n3; i++ ) {
      for (uint8_t bit=0x80; bit; bit >>= 1) {
        if(pixels[i] & bit) *dataport |=  datapinmask;
        else                *dataport &= ~datapinmask;
        *clkport |=  clkpinmask;
        *clkport &= ~clkpinmask;
      }
    }
  }
}

To this:

void LPD8806::show(void) {
  uint16_t i, index;
  
  // write 24 bits per pixel
  if (hardwareSPI) {
    for (i=0; i<numLEDs; i++) {
      index = i*3;
      for(char j = 2; j >= 0; j--){ //revese the colour order
        while(!(SPSR & (1<<SPIF))); // Wait for prior byte out
        SPDR = pixels[index + j];           // Issue new byte
      }
    }
    //Finally the latch byte 
	while(!(SPSR & (1<<SPIF))); // Wait for prior byte out
    SPDR = pixels[numLEDs * 3];           // Issue new byte
  } else {
    for (i=0; i<numLEDs; i++) {
      index = i*3;
      for(char j = 2; j >= 0; j--){ //revese the colour order
        for (uint8_t bit=0x80; bit; bit >>= 1) {
          if(pixels[index + j] & bit){
            *dataport |=  datapinmask;
          } else {
            *dataport &= ~datapinmask;
          }
          *clkport |=  clkpinmask;
          *clkport &= ~clkpinmask;
        }
      }
    }
    //Finally the latch byte 
    for (uint8_t bit=0x80; bit; bit >>= 1) {
      if(pixels[numLEDs * 3] & bit){
        *dataport |=  datapinmask;
      } else {
        *dataport &= ~datapinmask;
      }
      *clkport |=  clkpinmask;
      *clkport &= ~clkpinmask;
    }
  }
}