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August 28, 2016 18:22
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#include <Adafruit_NeoPixel.h> | |
#define PIN 6 | |
// Parameter 1 = number of pixels in strip | |
// Parameter 2 = pin number (most are valid) | |
// Parameter 3 = pixel type flags, add together as needed: | |
// NEO_KHZ800 800 KHz bitstream (most NeoPixel products w/WS2812 LEDs) | |
// NEO_KHZ400 400 KHz (classic 'v1' (not v2) FLORA pixels, WS2811 drivers) | |
// NEO_GRB Pixels are wired for GRB bitstream (most NeoPixel products) | |
// NEO_RGB Pixels are wired for RGB bitstream (v1 FLORA pixels, not v2) | |
Adafruit_NeoPixel strip = Adafruit_NeoPixel(60, PIN, NEO_GRB + NEO_KHZ800); | |
void setup() { | |
strip.begin(); | |
strip.show(); // Initialize all pixels to 'off' | |
} | |
void loop() { | |
// Some example procedures showing how to display to the pixels: | |
colorWipe(strip.Color(255, 0, 0), 50); // Red | |
colorWipe(strip.Color(0, 255, 0), 50); // Green | |
colorWipe(strip.Color(0, 0, 255), 50); // Blue | |
// Send a theater pixel chase in... | |
theaterChase(strip.Color(127, 127, 127), 50); // White | |
theaterChase(strip.Color(127, 0, 0), 50); // Red | |
theaterChase(strip.Color( 0, 0, 127), 50); // Blue | |
rainbow(20); | |
rainbowCycle(20); | |
theaterChaseRainbow(50); | |
} | |
// Fill the dots one after the other with a color | |
void colorWipe(uint32_t c, uint8_t wait) { | |
for(uint16_t i=0; i<strip.numPixels(); i++) { | |
strip.setPixelColor(i, c); | |
strip.show(); | |
delay(wait); | |
} | |
} | |
void rainbow(uint8_t wait) { | |
uint16_t i, j; | |
for(j=0; j<256; j++) { | |
for(i=0; i<strip.numPixels(); i++) { | |
strip.setPixelColor(i, Wheel((i+j) & 255)); | |
} | |
strip.show(); | |
delay(wait); | |
} | |
} | |
// Slightly different, this makes the rainbow equally distributed throughout | |
void rainbowCycle(uint8_t wait) { | |
uint16_t i, j; | |
for(j=0; j<256*5; j++) { // 5 cycles of all colors on wheel | |
for(i=0; i< strip.numPixels(); i++) { | |
strip.setPixelColor(i, Wheel(((i * 256 / strip.numPixels()) + j) & 255)); | |
} | |
strip.show(); | |
delay(wait); | |
} | |
} | |
//Theatre-style crawling lights. | |
void theaterChase(uint32_t c, uint8_t wait) { | |
for (int j=0; j<10; j++) { //do 10 cycles of chasing | |
for (int q=0; q < 3; q++) { | |
for (int i=0; i < strip.numPixels(); i=i+3) { | |
strip.setPixelColor(i+q, c); //turn every third pixel on | |
} | |
strip.show(); | |
delay(wait); | |
for (int i=0; i < strip.numPixels(); i=i+3) { | |
strip.setPixelColor(i+q, 0); //turn every third pixel off | |
} | |
} | |
} | |
} | |
//Theatre-style crawling lights with rainbow effect | |
void theaterChaseRainbow(uint8_t wait) { | |
for (int j=0; j < 256; j++) { // cycle all 256 colors in the wheel | |
for (int q=0; q < 3; q++) { | |
for (int i=0; i < strip.numPixels(); i=i+3) { | |
strip.setPixelColor(i+q, Wheel( (i+j) % 255)); //turn every third pixel on | |
} | |
strip.show(); | |
delay(wait); | |
for (int i=0; i < strip.numPixels(); i=i+3) { | |
strip.setPixelColor(i+q, 0); //turn every third pixel off | |
} | |
} | |
} | |
} | |
// 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 strip.Color(WheelPos * 3, 255 - WheelPos * 3, 0); | |
} else if(WheelPos < 170) { | |
WheelPos -= 85; | |
return strip.Color(255 - WheelPos * 3, 0, WheelPos * 3); | |
} else { | |
WheelPos -= 170; | |
return strip.Color(0, WheelPos * 3, 255 - WheelPos * 3); | |
} | |
} |
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