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DIY Abmilight like system
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Philips official: | |
https://www.youtube.com/watch?v=jV8IFZ5Sa_k | |
https://www.youtube.com/watch?v=2x3psK5pjME | |
20min demo video: | |
https://dl.dropboxusercontent.com/u/12487373/Dreambox/AtmoLight_Demo_All_In_One_HD.zip |
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////////// | |
// Requires: https://github.com/FastLED/FastLED/releases/tag/3.0.3 | |
// | |
// Arduino interface for the use of ws2812 operated LEDs | |
// Uses Adalight protocol and is compatible with Boblight, Prismatik etc | |
// "Magic Word" for synchronisation is 'Ada' followed by LED High, Low and Checksum | |
// | |
#include <FastLED.h> | |
///// User definitions ///// | |
// Define YOUR number of LEDs | |
#define NUM_LEDS 48 | |
// Define YOUR Input Pin | |
#define PIN 7 | |
// Baudrate, higher rate allows faster refresh rate and more LEDs (defined in /etc/boblight.conf) | |
#define serialRate 115200 | |
// 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; | |
// initialise LED-array | |
CRGB leds[NUM_LEDS]; | |
void setup() | |
{ | |
FastLED.addLeds<WS2811, PIN, GRB>(leds, NUM_LEDS); | |
// initial RGB flash | |
LEDS.showColor(CRGB(255, 0, 0)); | |
delay(500); | |
LEDS.showColor(CRGB(0, 255, 0)); | |
delay(500); | |
LEDS.showColor(CRGB(0, 0, 255)); | |
delay(500); | |
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(); | |
} |
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