Arduino mega xlights

Using Arduino Programming Questions
1

I tried play xlights fseq 576led matrix using code below. Designs are play but some designs play wrong direction and worng colors. i tried so much changing settings on xlights. i want to know is there any changes to do in this arduino programme.

#include <FastLED.h>
#include <SPI.h>
#include <SD.h>

#define NUM_LEDS 576
#define DATA_PIN 13
#define CHIPSET WS2812
#define CMD_NEW_DATA 1
#define BAUD_RATE 115200

File fxdata;
CRGB leds[NUM_LEDS];

void setup()
{
  FastLED.addLeds<CHIPSET, DATA_PIN>(leds, NUM_LEDS); //see doc for different LED strips
  Serial.begin(BAUD_RATE);


  for (int y = 0 ; y < NUM_LEDS ; y++)
  {
    leds[y] = CRGB::Black; // set all leds to black during setup
  }
  FastLED.show();

  pinMode(53, OUTPUT); // CS/SS pin as output for SD library to work.
  digitalWrite(10, HIGH); // workaround for sdcard failed error...

  if (!SD.begin(10))
  {
    Serial.println("sdcard initialization failed!");
    return;
  }
  Serial.println("sdcard initialization done.");

  // test file open
  fxdata = SD.open("xlights.fse");  // read only
  if (fxdata)
  {
    Serial.println("file open ok");
    fxdata.close();
  }
}


int serial ()
{
  while (!Serial.available()) {}
  return Serial.read();
}


void loop()
{

  fxdata = SD.open("xlights.fse");  // read only
  if (fxdata)
  {
    Serial.println("file open ok");
  }

  while (fxdata.available())
  {
    fxdata.readBytes((char*)leds, NUM_LEDS * 3);
    FastLED.show();
    delay(0); // set the speed of the animation. 20 is appx ~ 500k bauds
  }

  // close the file in order to prevent hanging IO or similar throughout time
  fxdata.close();
}Preformatted text
2

Have you tried slowing down the animation?

1 Like
3

yes

4

...and?

5

Should probably be

while (fxdata.available())
  {
    fxdata.readBytes((char*)leds, NUM_LEDS * 3);
  }
FastLED.show();
delay(0); // set the speed of the animation. 20 is appx ~ 500k bauds
1 Like
6

Not working

7

https://forum.arduino.cc/t/how-to-get-the-best-out-of-this-forum/679966

1 Like
8

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