FastLed ColorTemperature

main.cpp

#include "FastLED.h"

FASTLED_USING_NAMESPACE

#if defined(FASTLED_VERSION) && (FASTLED_VERSION < 3001000)
#warning "Requires FastLED 3.1 or later; check github for latest code."
#endif

#define NUM_STRIPS 1
#define NUM_LEDS_PER_STRIP 60
#define NUM_LEDS NUM_LEDS_PER_STRIP * NUM_STRIPS
CRGB leds[NUM_STRIPS * NUM_LEDS_PER_STRIP];
CRGB leds_virt1[20];

//#define BRIGHTNESS          30
#define BRIGHTNESS          25
#define FRAMES_PER_SECOND  120

uint8_t gHue = 0; // rotating "base color" used by many of the patterns

#define TEMPERATURE_1 Tungsten100W 
#define TEMPERATURE_2 OvercastSky

// How many seconds to show each temperature before switching
#define DISPLAYTIME 20
// How many seconds to show black between switches
#define BLACKTIME 3

void setup() {
  delay(200); // 3 second delay for recovery

  // tell FastLED there's 60 NEOPIXEL leds on pin 3, starting at index 0 in the led array
  FastLED.addLeds<NEOPIXEL, 13>(leds, 0, NUM_LEDS_PER_STRIP).setCorrection(TypicalLEDStrip);

  // set master brightness control
  FastLED.setBrightness(BRIGHTNESS);
}

void loop() {
    // draw a generic, no-name rainbow
  static uint8_t starthue = 0;
//   fill_rainbow( leds + 5, NUM_LEDS - 5, --starthue, 20);
fill_solid(leds,NUM_LEDS,CRGB::White);

  // Choose which 'color temperature' profile to enable.
  uint8_t secs = (millis() / 1000) % (DISPLAYTIME * 2);
  if( secs < DISPLAYTIME) {
    FastLED.setTemperature( TEMPERATURE_1 ); // first temperature
    leds[0] = TEMPERATURE_1; // show indicator pixel
  } else {
    FastLED.setTemperature( TEMPERATURE_2 ); // second temperature
    leds[0] = TEMPERATURE_2; // show indicator pixel
  }

  // Black out the LEDs for a few secnds between color changes
  // to let the eyes and brains adjust
  if( (secs % DISPLAYTIME) < BLACKTIME) {
    memset8( leds, 0, NUM_LEDS * sizeof(CRGB));
  }
  
  FastLED.show();
FastLED.delay(8);
}