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#include "LPD8806.h"
#include "SPI.h"
// Simple test for 160 (5 meters) of LPD8806-based RGB LED strip
/*****************************************************************************/
// Number of RGB LEDs in strand:
int nLEDs = 160;
// Chose 2 pins for output; can be any valid output pins:
int dataPin = 2;
int clockPin = 3;
// First parameter is the number of LEDs in the strand. The LED strips
// are 32 LEDs per meter but you can extend or cut the strip. Next two
// parameters are SPI data and clock pins:
LPD8806 strip = LPD8806(nLEDs, dataPin, clockPin);
// You can optionally use hardware SPI for faster writes, just leave out
// the data and clock pin parameters. But this does limit use to very
// specific pins on the Arduino. For "classic" Arduinos (Uno, Duemilanove,
// etc.), data = pin 11, clock = pin 13. For Arduino Mega, data = pin 51,
// clock = pin 52. For 32u4 Breakout Board+ and Teensy, data = pin B2,
// clock = pin B1. For Leonardo, this can ONLY be done on the ICSP pins.
//LPD8806 strip = LPD8806(nLEDs);
uint32_t SCHEME[] = {
strip.Color(117, 0, 27),
strip.Color(127, 43, 0),
strip.Color(0, 85, 57),
strip.Color(41, 111, 0)
};
uint32_t SCHEME2[] = {
strip.Color(99,0,62),
strip.Color(124,0,9),
strip.Color(53,5,85),
strip.Color(84,120,0)
};
void setup() {
// Start up the LED strip
strip.begin();
// Update the strip, to start they are all 'off'
strip.show();
}
void loop() {
colorChase();
}
// Chase one dot down the full strip. Good for testing purposes.
void colorChase() {
int i;
uint32_t c;
uint8_t wait;
// Start by turning all pixels off:
for(i=0; i<strip.numPixels(); i++) strip.setPixelColor(i, 0);
// Then display one pixel at a time:
for(i=0; i<strip.numPixels(); i++) {
c = SCHEME2[random(4)];
strip.setPixelColor(i, c); // Set new pixel 'on'
// strip.show(); // Refresh LED states
// strip.setPixelColor(i, 0); // Erase pixel, but don't refresh!
// delay(random(30));
}
strip.show(); // Refresh to turn off last pixel
}
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