#include #define PIN 3 // Parameter 1 = number of pixels in strip // Parameter 2 = Arduino pin number (most are valid) // Parameter 3 = pixel type flags, add together as needed: // NEO_GRB Pixels are wired for GRB bitstream (most NeoPixel products) // NEO_RGB Pixels are wired for RGB bitstream (v1 FLORA pixels, not v2) // Parameter 4 = array to store pixel data in #define NUMPIXELS 60 // Since this is for the static version of the library, we need to supply the pixel array // This saves space by eliminating use of malloc() and free(), and makes the RAM used for // the frame buffer show up when the sketch is compiled. byte pixels[NUMPIXELS * 3]; // When we setup the NeoPixel library, we tell it how many pixels, and which pin to use to send signals. // Note that for older NeoPixel strips you might need to change the third parameter--see the strandtest // example for more information on possible values. Finally, for the 4th argument we pass the array we // defined above. tinyNeoPixel strip = tinyNeoPixel(NUMPIXELS, PIN, NEO_GRB, pixels); // IMPORTANT: To reduce NeoPixel burnout risk, add 1000 uF capacitor across // pixel power leads, add 300 - 500 Ohm resistor on first pixel's data input // and minimize distance between Arduino and first pixel. Avoid connecting // on a live circuit...if you must, connect GND first. void setup() { pinMode(PIN, OUTPUT); //set pin output - this is not done internally by the library for Static version of library //strip.begin(); //Static version does not use this. 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 (uint16_t i = 0; i < strip.numPixels(); i = i + 3) { strip.setPixelColor(i + q, c); //turn every third pixel on } strip.show(); delay(wait); for (uint16_t 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 (uint16_t 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 (uint16_t 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) { WheelPos = 255 - WheelPos; if (WheelPos < 85) { return strip.Color(255 - WheelPos * 3, 0, WheelPos * 3); } if (WheelPos < 170) { WheelPos -= 85; return strip.Color(0, WheelPos * 3, 255 - WheelPos * 3); } WheelPos -= 170; return strip.Color(WheelPos * 3, 255 - WheelPos * 3, 0); }