- // NeoPixel Ring simple sketch (c) 2013 Shae Erisson
- // released under the GPLv3 license to match the rest of the AdaFruit NeoPixel library
- #include <Adafruit_NeoPixel.h>
- #ifdef __AVR__
- #include <avr/power.h>
- #endif
- // Which pin on the Arduino is connected to the NeoPixels?
- // On a Trinket or Gemma we suggest changing this to 1
- #define PIN 6
- // How many NeoPixels are attached to the Arduino?
- #define NUMPIXELS 16
- // 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.
- Adafruit_NeoPixel pixels = Adafruit_NeoPixel(NUMPIXELS, PIN, NEO_GRB + NEO_KHZ800);
- int delayval = 500; // delay for half a second
- void setup() {
- // This is for Trinket 5V 16MHz, you can remove these three lines if you are not using a Trinket
- #if defined (__AVR_ATtiny85__)
- if (F_CPU == 16000000) clock_prescale_set(clock_div_1);
- #endif
- // End of trinket special code
- pixels.begin(); // This initializes the NeoPixel library.
- }
- void loop() {
- // For a set of NeoPixels the first NeoPixel is 0, second is 1, all the way up to the count of pixels minus one.
- for(int i=0;i<NUMPIXELS;i++){
- // pixels.Color takes RGB values, from 0,0,0 up to 255,255,255
- pixels.setPixelColor(i, pixels.Color(0,150,0)); // Moderately bright green color.
- pixels.show(); // This sends the updated pixel color to the hardware.
- delay(delayval); // Delay for a period of time (in milliseconds).
- }
- }
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