FastLED Analog Strip Blend Test

//Main Goal: Analog Strip fades from one defined hue to a second defined hue
//Secondary Goal: 4 analog strips repeating this action with each delayed slightly. (2 Variables to define delay amount and overall speed fade occurs)

#include "FastLED.h"
#include "colorutils.h"

// fast led constants
#define NUM_LEDS    1       // change to the number of LEDs in your strip

#define REDPIN   5
#define GREENPIN 6
#define BLUEPIN  3

// hold the values for led in your strip
CRGB leds;

// blend variables
fraction = 0.1 //steps? or speed of transition?
CHSV color1 =  CHSV(0, 255, 100);
CHSV color2 = CHSV(180, 255, 100);

void showAnalogRGB( const CRGB& rgb)
{
  analogWrite(REDPIN,   rgb.r );
  analogWrite(GREENPIN, rgb.g );
  analogWrite(BLUEPIN,  rgb.b );
}


void setup()
{
  // not needed since analog strip?
  // FastLED.addLeds<LED_TYPE, DATA_PIN, COLOR_ORDER>(leds, NUM_LEDS);
}

 void loop()
{
/*
// Pixel blending
// blend - computes a new color blended some fraction of the way
//         between two other colors.
CRGB  blend( const CRGB& p1, const CRGB& p2, fract8 amountOfP2 );

CHSV  blend( const CHSV& p1, const CHSV& p2, fract8 amountOfP2,
            TGradientDirectionCode directionCode = SHORTEST_HUES );
*/

  colorutils.blend(color1, color2, fraction, SHORTEST_HUES);

  showAnalogRGB(CHSV(?, ?, ?));

  delay(1000);

}