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#include "SPI.h" | |
#include "Adafruit_WS2801.h" | |
Adafruit_WS2801 strip = Adafruit_WS2801(32); | |
void setup() { | |
Serial.begin(115200); | |
strip.begin(); | |
strip.show(); | |
} | |
void loop() { | |
int slow = 200; | |
colorWipe(Color(255, 255, 255), slow); | |
} | |
void colorWipe(uint32_t c, uint8_t wait) { | |
int i; | |
for (i=0; i < strip.numPixels(); i++) { | |
strip.setPixelColor(i, c); | |
strip.show(); | |
delay(wait); | |
} | |
} | |
// Create a 24 bit color value from R,G,B | |
uint32_t Color(byte r, byte g, byte b) | |
{ | |
uint32_t c; | |
c = r; | |
c <<= 8; | |
c |= g; | |
c <<= 8; | |
c |= b; | |
return c; | |
} | |
//Input a value 0 to 255 to get a color value. | |
//The colours are a transition r - g -b - back to r | |
uint32_t Wheel(byte WheelPos) | |
{ | |
if (WheelPos < 85) { | |
return Color(WheelPos * 3, 255 - WheelPos * 3, 0); | |
} else if (WheelPos < 170) { | |
WheelPos -= 85; | |
return Color(255 - WheelPos * 3, 0, WheelPos * 3); | |
} else { | |
WheelPos -= 170; | |
return Color(0, WheelPos * 3, 255 - WheelPos * 3); | |
} | |
} |
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