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Working FastLED Hyperion HDMI powered Sketch

pacman_d Apr 4th, 2016 468 Never
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  1. #include "FastLED.h"
  2.  
  3. // How many leds in your strip?
  4. #define NUM_LEDS 240
  5.  
  6. // For led chips like Neopixels, which have a data line, ground, and power, you just
  7. // need to define DATA_PIN.  For led chipsets that are SPI based (four wires - data, clock,
  8. // ground, and power), like the LPD8806 define both DATA_PIN and CLOCK_PIN
  9. #define DATA_PIN 12
  10. //#define CLOCK_PIN 13
  11.  
  12. #define COLOR_ORDER GRB
  13.  
  14. // Adalight sends a "Magic Word" (defined in /etc/boblight.conf) before sending the pixel data
  15. uint8_t prefix[] = {'A', 'd', 'a'}, hi, lo, chk, i;
  16.  
  17. // Baudrate, higher rate allows faster refresh rate and more LEDs (defined in /etc/boblight.conf)
  18. #define serialRate 500000
  19.  
  20. // Define the array of leds
  21. CRGB leds[NUM_LEDS];
  22.  
  23. void setup() {
  24.       // Uncomment/edit one of the following lines for your leds arrangement.
  25.       // FastLED.addLeds<TM1803, DATA_PIN, RGB>(leds, NUM_LEDS);
  26.       // FastLED.addLeds<TM1804, DATA_PIN, RGB>(leds, NUM_LEDS);
  27.       // FastLED.addLeds<TM1809, DATA_PIN, RGB>(leds, NUM_LEDS);
  28.       // FastLED.addLeds<WS2811, DATA_PIN, RGB>(leds, NUM_LEDS);
  29.       // FastLED.addLeds<WS2812, DATA_PIN, RGB>(leds, NUM_LEDS);
  30.          FastLED.addLeds<WS2812B, DATA_PIN, RGB>(leds, NUM_LEDS);
  31.       // FastLED.addLeds<NEOPIXEL, DATA_PIN>(leds, NUM_LEDS);
  32.       // FastLED.addLeds<UCS1903, DATA_PIN, RGB>(leds, NUM_LEDS);
  33.       // FastLED.addLeds<UCS1903B, DATA_PIN, RGB>(leds, NUM_LEDS);
  34.       // FastLED.addLeds<GW6205, DATA_PIN, RGB>(leds, NUM_LEDS);
  35.       // FastLED.addLeds<GW6205_400, DATA_PIN, RGB>(leds, NUM_LEDS);
  36.      
  37.       // FastLED.addLeds<WS2801, RGB>(leds, NUM_LEDS);
  38.       // FastLED.addLeds<SM16716, RGB>(leds, NUM_LEDS);
  39.       // FastLED.addLeds<LPD8806, RGB>(leds, NUM_LEDS);
  40.  
  41.       // FastLED.addLeds<WS2801, DATA_PIN, CLOCK_PIN, RGB>(leds, NUM_LEDS);
  42.       // FastLED.addLeds<SM16716, DATA_PIN, CLOCK_PIN, RGB>(leds, NUM_LEDS);
  43.       // FastLED.addLeds<LPD8806, DATA_PIN, CLOCK_PIN, RGB>(leds, NUM_LEDS);
  44.      
  45.         // initial RGB flash
  46.         LEDS.showColor(CRGB(255, 0, 0));
  47.         delay(500);
  48.         LEDS.showColor(CRGB(0, 255, 0));
  49.         delay(500);
  50.         LEDS.showColor(CRGB(0, 0, 255));
  51.         delay(500);
  52.         LEDS.showColor(CRGB(0, 0, 0));
  53.        
  54.         Serial.begin(serialRate);
  55.         Serial.print("Ada\n"); // Send "Magic Word" string to host
  56.  
  57. }
  58.  
  59. void loop() {
  60.   // wait for first byte of Magic Word
  61.   for(i = 0; i < sizeof prefix; ++i) {
  62.     waitLoop: while (!Serial.available()) ;;
  63.     // Check next byte in Magic Word
  64.     if(prefix[i] == Serial.read()) continue;
  65.     // otherwise, start over
  66.     i = 0;
  67.     goto waitLoop;
  68.   }
  69.  
  70.   // Hi, Lo, Checksum
  71.  
  72.   while (!Serial.available()) ;;
  73.   hi=Serial.read();
  74.   while (!Serial.available()) ;;
  75.   lo=Serial.read();
  76.   while (!Serial.available()) ;;
  77.   chk=Serial.read();
  78.  
  79.   // if checksum does not match go back to wait
  80.   if (chk != (hi ^ lo ^ 0x55))
  81.   {
  82.     i=0;
  83.     goto waitLoop;
  84.   }
  85.  
  86.   memset(leds, 0, NUM_LEDS * sizeof(struct CRGB));
  87.   // read the transmission data and set LED values
  88.   for (uint8_t i = 0; i < NUM_LEDS; i++) {
  89.     byte r, g, b;    
  90.     while(!Serial.available());
  91.     r = Serial.read();
  92.     while(!Serial.available());
  93.     g = Serial.read();
  94.     while(!Serial.available());
  95.     b = Serial.read();
  96.     leds[i].r = r;
  97.     leds[i].g = g;
  98.     leds[i].b = b;
  99.   }
  100.   // shows new values
  101.  FastLED.show();
  102. }
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