[Tutorial] Hyperion Ambilight on Linux and OpenELEC x64

Code:

#include "FastLED.h"



// How many leds in your strip?

#define NUM_LEDS 95



// For led chips like Neopixels, which have a data line, ground, and power, you just

// need to define DATA_PIN.  For led chipsets that are SPI based (four wires - data, clock,

// ground, and power), like the LPD8806 define both DATA_PIN and CLOCK_PIN

#define DATA_PIN 11

#define CLOCK_PIN 13



#define COLOR_ORDER BGR



// Adalight sends a "Magic Word" (defined in /etc/boblight.conf) before sending the pixel data

uint8_t prefix[] = {'A', 'd', 'a'}, hi, lo, chk, i;



// Baudrate, higher rate allows faster refresh rate and more LEDs (defined in /etc/boblight.conf)

#define serialRate 230400



// Define the array of leds

CRGB leds[NUM_LEDS];



void setup() {

      // Uncomment/edit one of the following lines for your leds arrangement.

      // FastLED.addLeds<TM1803, DATA_PIN, RGB>(leds, NUM_LEDS);

      // FastLED.addLeds<TM1804, DATA_PIN, RGB>(leds, NUM_LEDS);

      // FastLED.addLeds<TM1809, DATA_PIN, RGB>(leds, NUM_LEDS);

      // FastLED.addLeds<WS2811, DATA_PIN, RGB>(leds, NUM_LEDS);

      // FastLED.addLeds<WS2812, DATA_PIN, RGB>(leds, NUM_LEDS);

      // FastLED.addLeds<WS2812B, DATA_PIN, RGB>(leds, NUM_LEDS);

      // FastLED.addLeds<NEOPIXEL, DATA_PIN>(leds, NUM_LEDS);

      // FastLED.addLeds<UCS1903, DATA_PIN, RGB>(leds, NUM_LEDS);

      // FastLED.addLeds<UCS1903B, DATA_PIN, RGB>(leds, NUM_LEDS);

      // FastLED.addLeds<GW6205, DATA_PIN, RGB>(leds, NUM_LEDS);

      // FastLED.addLeds<GW6205_400, DATA_PIN, RGB>(leds, NUM_LEDS);

     

      // FastLED.addLeds<WS2801, RGB>(leds, NUM_LEDS);

      // FastLED.addLeds<SM16716, RGB>(leds, NUM_LEDS);

      // FastLED.addLeds<LPD8806, RGB>(leds, NUM_LEDS);



       FastLED.addLeds<WS2801, DATA_PIN, CLOCK_PIN, RGB>(leds, NUM_LEDS);

      // FastLED.addLeds<SM16716, DATA_PIN, CLOCK_PIN, RGB>(leds, NUM_LEDS);

      // FastLED.addLeds<LPD8806, DATA_PIN, CLOCK_PIN, RGB>(leds, NUM_LEDS);

     

        // initial RGB flash

        LEDS.showColor(CRGB(0, 0, 0));

        delay(20);

        LEDS.showColor(CRGB(0, 0, 0));

        delay(20);

        LEDS.showColor(CRGB(0, 0, 0));

        delay(20);

        LEDS.showColor(CRGB(0, 0, 0));

       

        Serial.begin(serialRate);

        Serial.print("Ada\n"); // Send "Magic Word" string to host



}



void loop() {

  // wait for first byte of Magic Word

  for(i = 0; i < sizeof prefix; ++i) {

    waitLoop: while (!Serial.available()) ;;

    // Check next byte in Magic Word

    if(prefix[i] == Serial.read()) continue;

    // otherwise, start over

    i = 0;

    goto waitLoop;

  }



  // Hi, Lo, Checksum



  while (!Serial.available()) ;;

  hi=Serial.read();

  while (!Serial.available()) ;;

  lo=Serial.read();

  while (!Serial.available()) ;;

  chk=Serial.read();



  // if checksum does not match go back to wait

  if (chk != (hi ^ lo ^ 0x55))

  {

    i=0;

    goto waitLoop;

  }



  memset(leds, 0, NUM_LEDS * sizeof(struct CRGB));

  // read the transmission data and set LED values

  for (uint8_t i = 0; i < NUM_LEDS; i++) {

    byte r, g, b;    

    while(!Serial.available());

    r = Serial.read();

    while(!Serial.available());

    g = Serial.read();

    while(!Serial.available());

    b = Serial.read();

    leds[i].r = r;

    leds[i].g = g;

    leds[i].b = b;

  }

  // shows new values

FastLED.show();

}

Code:

import json

import subprocess



colors = ['purple',

          'orange',

          'blue',

          'green',

          'red',

          'cyan',

          ]



defaultData = {"color":"purple",

               "effect":"night rider"

               }



def read_current():

    try:

        with open('/opt/hyperion/scripts/currentcolour.json', 'r') as f:

            data = json.load(f)

        f.close()

        if data == '':

            return defaultData

        else:

            return data

    except (IOError, ValueError):

        return defaultData

    

def write_current(data):

    try:

        with open('/opt/hyperion/scripts/currentcolour.json', 'w') as f:

            json.dump(data, f)

        f.close()

    except IOError:

        pass

    

def parse_current_effect():

    pass



def set_current_effect():

    pass



def set_color(color):

    subprocess.Popen('/opt/hyperion/bin/hyperion-remote --priority 100 --color ' + color, shell=True)



def main():

    current_data = read_current()

    for i,color in enumerate(colors):

        if color == current_data['color']:

            if i == len(colors) - 1:

                current_data['color'] = colors[0]

                break

            else:

                current_data['color'] = colors[i + 1]

                break

        

    write_current(current_data)

    set_color(current_data['color'])

    

main()

Code:

import json

import subprocess



colors = ['Snake',

          'Strobe',

          'Rainbow swirl fast',

          'mood-blobs',

          'red',

          'purple',

          ]



defaultData = {"color":"purple",

               "effect":"Blue\\ mood\\ blobs"

               }



effects = ['Blue\\ mood\\ blobs',

          'Cold\\ mood\\ blobs',

          'Full\\ color\\ mood\\ blobs',

          'Green\\ mood\\ blobs',

          'Red\\ mood\\ blobs',

          'Warm\\ mood\\ blobs',

          'Rainbow\\ swirl',

          ]

          

def read_current():

    try:

        with open('/opt/hyperion/scripts/currenteffect.json', 'r') as f:

            data = json.load(f)

        f.close()

        if data == '':

            return defaultData

        else:

            return data

    except (IOError, ValueError):

        return defaultData

    

def write_current(data):

    try:

        with open('/opt/hyperion/scripts/currenteffect.json', 'w') as f:

            json.dump(data, f)

        f.close()

    except IOError:

        pass

    

def parse_current_effect():

    pass



def set_current_effect():

    pass



def set_effect(effect):

    subprocess.Popen('/opt/hyperion/bin/hyperion-remote --priority 100 --effect ' + effect, shell=True)



def main():

    current_data = read_current()

    for i,effect in enumerate(effects):

        if effect == current_data['effect']:

            if i == len(effects) - 1:

                current_data['effect'] = effects[0]

                break

            else:

                current_data['effect'] = effects[i + 1]

                break

        

    write_current(current_data)

    set_effect(current_data['effect'])

    

main()