單元10_ESP8266_控制WS2812B_彩虹呈現

程式碼

https://gist.github.com/clive520/a402ee10aa5d522ab2de6cbacd4f7f17

 

#include <Adafruit_NeoPixel.h>

#ifdef __AVR__

 #include <avr/power.h> // Required for 16 MHz Adafruit Trinket

#endif

#define LED_PIN    4

#define LED_COUNT 10

Adafruit_NeoPixel strip(LED_COUNT, LED_PIN, NEO_GRB + NEO_KHZ800);

void setup() {

#if defined(__AVR_ATtiny85__) && (F_CPU == 16000000)

  clock_prescale_set(clock_div_1);

#endif

  strip.begin();           // INITIALIZE NeoPixel strip object (REQUIRED)

  strip.show();            // Turn OFF all pixels ASAP

  strip.setBrightness(250 ); // Set BRIGHTNESS to about 1/5 (max = 255)

}

void loop() {

  rainbow(100);             // Flowing rainbow cycle along the whole strip

}

void rainbow(int wait) {

  for(long firstPixelHue = 0; firstPixelHue < 5*65536; firstPixelHue += 256) {

    for(int i=0; i<strip.numPixels(); i++) { // For each pixel in strip...

      int pixelHue = firstPixelHue + (i * 65536L / strip.numPixels());

      strip.setPixelColor(i, strip.gamma32(strip.ColorHSV(pixelHue)));

    }

    strip.show(); // Update strip with new contents

    delay(wait);  // Pause for a moment

  }

}