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Control Camera with Arduino

Jul 20

PaulArduino, Sensor Arduino, c, camera, serial port 3 Comments

Photo taken by C328

Connection:

Breadboard setup:

Download required libries:

• http://arms22.googlecode.com/files/CameraC328R.zip
• http://arduiniana.org/libraries/newsoftserial/

Extract the zip files to “\arduino-0018\libraries\”

Start Arduino IDE, compile and download the following source code to Arduino:

#include <CameraC328R.h>
#include <NewSoftSerial.h>

#define LED_PIN 13
#define PAGE_SIZE 64
#define USB_BAUD 115200
#define CAMERA_BAUD 14400

NewSoftSerial mySerial(2, 3);
CameraC328R camera(&mySerial);

uint16_t pictureSizeCount = 0;

/**
 * This callback is called EVERY time a JPEG data packet is received.
 */
void getJPEGPicture_callback( uint16_t pictureSize, uint16_t packageSize, uint16_t packageCount, byte* package )
{
  // packageSize is the size of the picture part of the package
  pictureSizeCount += packageSize;

  Serial.write(package,packageSize);

  if( pictureSizeCount >= pictureSize )
  {
    digitalWrite( LED_PIN, LOW );
    Serial.flush();
  }
}

void setup()
{
  Serial.begin( USB_BAUD );
  mySerial.begin(CAMERA_BAUD);

  pinMode( LED_PIN, OUTPUT );
  digitalWrite( LED_PIN, LOW );
}

void loop()
{
  if( Serial.available() ){

    while(Serial.read() != -1);

    digitalWrite( LED_PIN, HIGH );

    if( !camera.sync() )
    {
      Serial.println( "Sync failed." );
      return;
    }

    if( !camera.initial( CameraC328R::CT_JPEG, CameraC328R::PR_160x120, CameraC328R::JR_640x480 ) )
    {
      Serial.println( "Initial failed." );
      return;
    }

    if( !camera.setPackageSize( 64 ) )
    {
      Serial.println( "Package size failed." );
      return;
    }

    if( !camera.setLightFrequency( CameraC328R::FT_50Hz ) )
    {
      Serial.println( "Light frequency failed." );
      return;
    }

    if( !camera.snapshot( CameraC328R::ST_COMPRESSED, 0 ) )
    {
      Serial.println( "Snapshot failed." );
      return;
    }

    pictureSizeCount = 0;
    if( !camera.getJPEGPicture( CameraC328R::PT_JPEG, PROCESS_DELAY, &getJPEGPicture_callback ) )
    {
      Serial.println( "Get JPEG failed." );
      return;
    }
  }
}

Start Processing and run the following code:

import processing.serial.*;

Serial myPort;
String filename = "photo.jpg";
byte[] photo = {
};
Boolean readData = false;

void setup()
{
  println( Serial.list() );
  myPort = new Serial( this, Serial.list()[0], 38400 );
}

void draw()
{
  byte[] buffer = new byte[64];
  if( readData )
  {
    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] );
      }
    }
  }
  else
  {
    while( myPort.available() > 0 )
    {
      print( "COM Data: " );
      println( myPort.readString() );
    }
  }
}

void keyPressed()
{
  if( photo.length > 0 ) {
    readData = false;
    print( "Writing to disk " );
    print( photo.length );
    println( " bytes ..." );
    saveBytes( filename, photo );
    println( "DONE!" );
  }
  else {
    readData = true;
    myPort.clear();
    println( "Waiting for data ..." );
  }
}

You should see two windows like below:

Press 2 which is the Arduino serial port in my laptop

After a while, it will stop and you can press ANY key again, it will show you:

And you can see photo above and image file in your Processing project folder

Reference: http://arms22.blog91.fc2.com/blog-entry-261.html

http://gizmologi.st/2009/04/taking-pictures-with-arduino/