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.

//these ints act as state switches
int light_blue = 0;
int teal = 1;
int pink =0;
int grey = 0;
int orange =0;
int yellow = 0;
int cream = 0;
int violet = 0;

//if I want to faded to colors, I can change this between 0 and 1
int change = 1;

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

//this function changes from one color to another based on the stats in the if statement in the main loop
void triggerFade(){

  //for as long as we have pixels
     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(10);
            }
        //make sure the color we set the current color when we are done fading in
        current_r = r;
        current_g = b;
        current_b = b;
        change = 0; //flip off change
}

//fucntions for calling from OF
int set_light_blue(String command){
    return 0;
}

void setup()
{

    //color switches just in case I want to query them for later - currently only for debugging
    Spark.variable("light_blue", &light_blue, INT);
    Spark.variable("teal", &teal, INT);
    Spark.variable("pink", &pink, INT);
    Spark.variable("grey", &pink, INT);
    Spark.variable("orange", &pink, INT);
    Spark.variable("yellow", &pink, INT);
    Spark.variable("cream", &pink, INT);
    Spark.variable("violet", &pink, INT);

    //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_light_blue", set_light_blue);

    //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()
{
    //if you want to change colors
    if(change==1){
      //see which color to change to and call the fade function
        if(light_blue==1){target_r=0; target_g=0; target_b=255; triggerFade();}
        else if(teal==1){target_r=0; target_g=155; target_b=100;Serial.println("teal");triggerFade();}
        else if(pink==1){target_r=0; target_g=0; target_b=0;triggerFade();}
        else if(grey==1){target_r=0; target_g=0; target_b=0;triggerFade();}
        else if(orange==1){target_r=0; target_g=0; target_b=0;triggerFade();}
        else if(yellow==1){target_r=0; target_g=0; target_b=0;triggerFade();}
        else if(cream==1){target_r=0; target_g=0; target_b=0;triggerFade();}
        //violet is last!
        else { target_r=0; target_g=0; target_b=0;triggerFade();}
    }
    // if there's no change
    else{
    //show all colors at the current color
        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);

}