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Arduino Adalight code

Una publicación compartida de ELECTRONOOBS®️ (@electronoobs) el


Arduino Adalight - CODE


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Download the .zip file below. Open it on your Arduino IDE and upload it to the Arduino and make sure you have the connections as in the schematic. Also, read all the comments in the code to understand more. You could also copy and paste the code from below.
Download ADALIGHT code here:

Original files on GitHub: LINK



This code is for the schematic.



Remember to install the FastLed library
Downlaod FastLED-3.1.8 library here:



/*
 * Arduino interface for the use of WS2812 strip LEDs
 * Uses Adalight protocol and is compatible with Boblight, Prismatik etc...
 * "Magic Word" for synchronisation is 'Ada' followed by LED High, Low and Checksum
 * @author: Wifsimster <wifsimster@gmail.com> 
 * @library: FastLED v3.001
 * @date: 11/22/2015
 */
#include "FastLED.h"
#define NUM_LEDS 240
#define DATA_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() {
  // Use NEOPIXEL to keep true colors
  FastLED.addLeds<NEOPIXEL, DATA_PIN>(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);
  // Send "Magic Word" string to host
  Serial.print("Ada\n");
}

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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