NeoPixel Controller for Spark

rainbow_controller.cpp

// This #include statement was automatically added by the Spark IDE.
#include "lib1.h"

// This #include statement was automatically added by the Spark IDE.
#include "neopixel/neopixel.h"

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

// Set the LED strip pin, pixel count and type
#define PIXEL_PIN D1
#define PIXEL_COUNT 12
#define PIXEL_TYPE WS2812B

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

// name the pins
int led1 = D0;
int led2 = D2;
char patternArr[255]; // where we store our pattern
String pattern(patternArr);

// This routine runs only once upon reset
void setup()
{
   //Register our 4 Spark functions here
   Spark.function("echo", echo);
   Spark.function("ledsOn", ledsOn);
   Spark.function("ledsOff", ledsOff);
   // change the pattern of the LED strip
   Spark.function("changePat", changePat);
   // LIMIT IS 4 functions!!!
   
   // Configure the pins to be outputs
   pinMode(led1, OUTPUT);
   pinMode(led2, OUTPUT);

   // Initialize the LEDs to be off and on
   digitalWrite(led1, LOW);
   digitalWrite(led2, HIGH);
   
   strip.begin();
   strip.show(); // Initialize all pixels to 'off'
   pattern = "colorwipe";
}


// This routine loops forever
void loop()
{
    if (pattern == "rainbow") {
          rainbow(20);
    };
    
    if (pattern == "red") {red();};
    if (pattern == "green") {green();};
    if (pattern == "blue") {blue();};
    if (pattern == "yellow") {yellow();};
    if (pattern == "orange") {orange();};
    if (pattern == "purple") {purple();};
    if (pattern == "cyan") {cyan();};
    if (pattern == "white") {white();};
    if (pattern == "dim") {dim();};
    
    if (pattern == "colorwipe") {
      colorWipe(100, 100);
    };
    
    if (pattern == "indigo") {
      indigo();
    };
    
    if (pattern == "color100") {
      setColor(100);
    };
    
    if (pattern == "colorall200") {
      colorAll(100, 20);
    };
    
    if (pattern == "random-color") {
      randomColor();
    };
    
    if (pattern == "random-rgb") {
      randomRGB();
    };
    
    if (pattern == "candle") {candle();};
    if (pattern == "cylon") {cylon();};
    if (pattern == "up-down") {upDown();};
    
    digitalWrite(led1, HIGH);
    delay(50);
    digitalWrite(led1, LOW);
}

// change the LED strip pattern
int changePat(String newPattern) {
  if (newPattern == "rainbow") {
      pattern = "rainbow";
      return 0;
  };
  
  if (newPattern == "red")    {pattern = "red";    return 1;};
  if (newPattern == "orange") {pattern = "orange"; return 2;};
  if (newPattern == "yellow") {pattern = "yellow"; return 3;};
  if (newPattern == "green")  {pattern = "green";  return 4;};
  if (newPattern == "blue")   {pattern = "blue";   return 5;};
  if (newPattern == "indigo") {pattern = "indigo"; return 6;};
  if (newPattern == "violet") {pattern = "purple"; return 7;};
  if (newPattern == "white")  {pattern = "white";  return 8;};
  if (newPattern == "purple") {pattern = "purple"; return 9;};
  if (newPattern == "cyan")   {pattern = "cyan";   return 10;};
  if (newPattern == "dim")    {pattern = "dim";    return 11;};
    
  if (newPattern == "colorwipe") {
       pattern = "colorwipe";
      return 12;
  };
  
  if (newPattern == "indigo") {
      pattern = "indigo";
      return 13;
  };
  
 if (newPattern == "color100") {
      pattern = "color100";
      return 14;
  };
  
  if (newPattern == "colorall200") {
      pattern = "colorall200";
      return 15;
  };
  
  if (newPattern == "random-color") {
      pattern = "random-color";
      return 16;
  };
  
  if (newPattern == "random-rgb") {
      pattern = "random-rgb";
      return 17;
  };
  
  if (newPattern == "candle") {
      pattern = "candle";
      return 18;
  };
  
  if (newPattern == "cylon") {
      pattern = "cylon";
      return 18;
  };
  
  
  if (newPattern == "up-down") {
      pattern = "up-down";
      return 18;
  };
  
  // named pattern not found
  return -1;
}

// echo the string length of the incomming parameter
int echo(String parameter) {
  int length = parameter.length();
  return length;
}

// functions with no parameters and no return 1
int ledsOn(String command) {
   digitalWrite(led1, HIGH);
   digitalWrite(led2, HIGH);
    return 1;
}

int ledsOff(String command) {
   digitalWrite(led1, LOW);
   digitalWrite(led2, LOW);
    return 1;
}

// rotate color wheel every wait milli-second
void rainbow(uint8_t wait) {
  uint16_t i, j;
  for(j=0; j<256; j++) {
    for(i=0; i<strip.numPixels(); i++) {
      strip.setPixelColor(i, Wheel((i+j) & 255));
    }
    strip.show();
    delay(wait);
  }
}

void red() {
    int i;
    for(i=0; i<strip.numPixels(); i++) {
      strip.setPixelColor(i, 255, 0, 0);
    }
    strip.show();
}

void green() {
   int i;
    for(i=0; i<strip.numPixels(); i++) {
      strip.setPixelColor(i, 0, 255, 0);
    }
    strip.show();
}

void blue() {
   int i;
    for(i=0; i<strip.numPixels(); i++) {
      strip.setPixelColor(i, 0, 0, 255);
    }
    strip.show();
}

void indigo() {
   int i;
    for(i=0; i<strip.numPixels(); i++) {
      strip.setPixelColor(i, 75, 0, 130);
    }
    strip.show();
}

void yellow() {
   int i;
    for(i=0; i<strip.numPixels(); i++) {
      strip.setPixelColor(i, 255, 255, 0);
    }
    strip.show();
}

void orange() {
   int i;
   for(i=0; i<strip.numPixels(); i++) {
      strip.setPixelColor(i, 255, 165, 0);
    }
    strip.show();
}

void white() {
   int i;
    for(i=0; i<strip.numPixels(); i++) {
      strip.setPixelColor(i, 255, 255, 255);
    }
    strip.show();
}

void cyan() {
   int i;
    for(i=0; i<strip.numPixels(); i++) {
      strip.setPixelColor(i, 0, 255, 255);
    }
    strip.show();
}

void purple() {
   int i;
    for(i=0; i<strip.numPixels(); i++) {
      strip.setPixelColor(i, 128, 0, 128);
    }
    strip.show();
}

void dim() {
   int i;
    for(i=0; i<strip.numPixels(); i++) {
      strip.setPixelColor(i, 10, 10, 10);
    }
    strip.show();
}
  
// set a static color
void setColor(int color) {
    for(uint16_t i=0; i<strip.numPixels(); i++) {
      strip.setPixelColor(i, Wheel(color));
    }
    strip.show();
}

// Input a value 0 to 255 to get a color value.
// The colours are a transition r - g - b - back to r.
uint32_t Wheel(byte WheelPos) {
  if(WheelPos < 85) {
   return strip.Color(WheelPos * 3, 255 - WheelPos * 3, 0);
  } else if(WheelPos < 170) {
   WheelPos -= 85;
   return strip.Color(255 - WheelPos * 3, 0, WheelPos * 3);
  } else {
   WheelPos -= 170;
   return strip.Color(0, WheelPos * 3, 255 - WheelPos * 3);
  }
}

// color all pixels with this color and wait
void colorAll(uint32_t c, uint8_t wait) {
  uint16_t i;
  
  for(i=0; i<strip.numPixels(); i++) {
    strip.setPixelColor(i, c);
  }
  strip.show();
  delay(wait);
}

// Fill the dots one after the other with a color, wait (ms) after each one
void colorWipe(uint32_t c, uint8_t wait) {
    for(byte color=0; color<=255; color=color + 32) {
  for(uint16_t i=0; i<strip.numPixels(); i++) {
    strip.setPixelColor(i, Wheel(color));
    strip.show();
    delay(wait);
  }
  }
}

void randomRGB() {
  for(uint16_t i=0; i<strip.numPixels(); i++) {
     strip.setPixelColor(i, random(255), random(255), random(255));
     strip.show();
     delay(100);
  }
}

void candle() {
   uint16_t yellowBright; // brightness of the yellow
   uint16_t redBright;  // add a bit for red
   for(uint16_t i=0; i<1000; i++) {
     yellowBright = 50 + random(155);
     redBright = yellowBright + random(50);
     strip.setPixelColor(random(12), redBright, yellowBright, 0);
     strip.show();
     delay(10);
  }
}

void randomColor() {
int newColor;
  for(uint16_t i=0; i<strip.numPixels(); i++) {
     newColor = Wheel(random(255));
     strip.setPixelColor(i, newColor);
     strip.show();
     delay(100);
  }
}


// this one really sucks.  Need to put in multiple pixels with smooth scroll later
void cylon() {
    int np = strip.numPixels();
    strip.begin();
    strip.show();
    // up
    for(uint16_t i=0; i<np; i++) {
        strip.setPixelColor(i, 255, 0, 0);
        strip.show();
        delay(100);
        if (i < np)
          strip.setPixelColor(i, 0, 0, 0);
    };
    // down
     for(uint16_t i=np; i>0; i--) {
        strip.setPixelColor(i, 255, 0, 0);
        strip.show();
        delay(100);
        strip.setPixelColor(i, 0, 0, 0);
    };
}

// should have color and delay
void upDown() {
    int np = strip.numPixels();
    strip.begin();
    strip.show();
    // draw up
    for(uint16_t i=0; i<np; i++) {
        strip.setPixelColor(i, 0, 0, 100);
        strip.show();
        delay(50);
    };
    // down
     for(uint16_t i=np; i>0; i--) {
        strip.setPixelColor(i, 0, 0, 0);
        strip.show();
        delay(50);
    };
    
}