gistfile1.txt

/*
 * This is a minimal example, see extra-examples.cpp for a version
 * with more explantory documentation, example routines, how to
 * hook up your pixels and all of the pixel types that are supported.
 *
 */

#include "application.h"
//#include "spark_disable_wlan.h" // For faster local debugging only
#include "neopixel.h"

// IMPORTANT: Set pixel COUNT, PIN and TYPE
#define PIXEL_PIN D2
#define PIXEL_COUNT 2
#define PIXEL_TYPE WS2812B

Adafruit_NeoPixel strip = Adafruit_NeoPixel(PIXEL_COUNT, PIXEL_PIN, PIXEL_TYPE);

//currntly displaying color
uint32_t r= 255;
uint32_t g= 255;
uint32_t b= 255;

//variables for fading colors
uint32_t current_r = 255;
uint32_t current_g=255;
uint32_t current_b =255;

uint32_t target_r = 255;
uint32_t target_b = 255;
uint32_t target_g =255;

uint32_t col =255; //current color - this will get refactored later.

//start fade at 0%
float pct = 0;

//fucntions for calling from OF
int set_color(String command){
    //for as long as we have pixels
     if(command == "light_blue"){target_r=0; target_g=0; target_b=255;}
        else if(command == "teal"){target_r=0; target_g=155; target_b=100;Serial.println("teal");}
        else if(command=="pink"){target_r=200; target_g=0; target_b=10;}
        else if(command=="grey"){target_r=255; target_g=0; target_b=0;}
        else if(command=="orange"){target_r=255; target_g=255; target_b=0;}
        else if(command=="yellow"){target_r=25; target_g=200; target_b=40;}
        else if(command=="cream"){target_r=10; target_g=30; target_b=40;}
        //violet is last!
        else { target_r=255; target_g=0; target_b=255;}

       for(int16_t i=0; i<strip.numPixels(); i++)
              {
                  //serial.println("changingpixels");
                  //change each rgb value one at a time
                  for(int16_t i=0; i< 256; i++)
                  {

                      //divide by 255 to get closer and closer to 1
                      pct = i/255;
                      //fade from old color to new
                      r = (1-pct) * current_r + (pct) * target_r;
                      g = (1-pct) * current_b + (pct) * target_b;
                      b = (1-pct) * current_g + (pct) * target_g;
                      //transition the actual pixels
                      col = strip.Color(r,g,b);
                      strip.setPixelColor(i, col);
                  }
                  strip.show();
                  delay(1000);
              }
          //make sure the color we set the current color when we are done fading in
          current_r = r;
          current_g = b;
          current_b = b;
          return col;
}

void setup()
{
    //ultimately I'll have an exposed function for each color to change the active color. right now only this one is stubbed in.
    Spark.function("set_color", set_color);

    //code required to start the strip up
    strip.begin();
    strip.show();

    // Make sure your //serial Terminal app is closed before powering your Core
    //serial.begin(9600);
    // Now open your //serial Terminal, and hit any key to continue!
    //while(!//serial.available()) SPARK_WLAN_Loop();
}
void loop()
{

        for(int i=0; i< strip.numPixels()+1;  i++)
            {
                //serial.println("got to else");
                col = strip.Color(r,g,b);
                strip.setPixelColor(i, col);

            }


     strip.show();
     delay(100);

}