Hello,

I have a C328 Serial camera connected to my Arduino board. I try to modify an excising piece of code to automatically save the received pictures:

Code:

import processing.serial.*;

Serial myPort;
int i = 1;
int TotalBytes = 0;
String ImageFilename = "Photo_" + year() + "_" + day() + "_" + month() + "-" + hour() + "_" + minute() + "_" + second() + "_" + millis() + ".jpg";
int CharEOF = 126;

void setup()
{
  //Set and open serial port
  println( Serial.list() );
  myPort = new Serial( this, Serial.list()[1], 9600 );
  myPort.clear();
}

void draw()
{
  // Import Picture
  byte[] Photo = {
  };
  byte[] buffer = new byte[64];

  while( myPort.available() > 0 )
  {
    int readBytes = myPort.readBytes(buffer);
    print( "Read " );
    print( readBytes );
    println( " bytes ..." );

    for( int i = 0; i < readBytes; i++ )
    {
	Photo = append( Photo, buffer[i] );
    }

    // Save picture to file
    if( Photo.length > 0 ) {
	print( "Writing to disk " );
	print( Photo.length );
	println( " bytes ..." );
	saveBytes( ImageFilename, Photo );
	println( "DONE!" );

	//Clear the array
	Photo = null; // clear array

	// Open Picture
	size(640, 480);
	PImage C328Image;
	C328Image = loadImage(ImageFilename);
	image(C328Image, 0, 0);

	//Flush serial port
	myPort.clear();

    }
  }
}
 

The last packet of the picture has a "~" (Chr(126) at the end to indicate the end of file.

I would like to start this piece of code:

Code:

 // Save picture to file
    if( Photo.length > 0 ) {
	print( "Writing to disk " );
	print( Photo.length );
	println( " bytes ..." );
	saveBytes( ImageFilename, Photo );
	println( "DONE!" );

	//Clear the array
	Photo = null; // clear array

	// Open Picture
	size(640, 480);
	PImage C328Image;
	C328Image = loadImage(ImageFilename);
	image(C328Image, 0, 0);

	//Flush serial port
	myPort.clear();

    }
 

right before "~" enters the buffer.


I was thinking something like this:

Code:

if (buffer[i] = char(126))
	{
	  // Save picture to file
	  if( Photo.length > 0 ) {
	    print( "Writing to disk " );
	    print( Photo.length );
	    println( " bytes ..." );
	    saveBytes( ImageFilename, Photo );
	    println( "DONE!" );

	    //Clear the array
	    Photo = null; // clear array

	    // Open Picture
	    size(640, 480);
	    PImage C328Image;
	    C328Image = loadImage(ImageFilename);
	    image(C328Image, 0, 0);

	    //Flush serial port
	    myPort.clear();

	  }
 

But then I get the following error on the If statement:

Cannot convert from byte to boolean.

Because of my poor processing skills I would like to have the communities advise on how to solve it.


Thanks in advance,

Cheers