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Topic: Code for TTL Camera (Read 1 time) previous topic - next topic

I used this code to connect a TTL Camera:

Code: [Select]
#include <Adafruit_VC0706.h>

// This is a basic snapshot sketch using the VC0706 library.
// On start, the Arduino will find the camera and SD card and
// then snap a photo, saving it to the SD card.
// Public domain.

// If using an Arduino Mega (1280, 2560 or ADK) in conjunction
// with an SD card shield designed for conventional Arduinos
// (Uno, etc.), it's necessary to edit the library file:
//   libraries/SD/utility/Sd2Card.h
// Look for this line:
//   #define MEGA_SOFT_SPI 0
// change to:
//   #define MEGA_SOFT_SPI 1
// This is NOT required if using an SD card breakout interfaced
// directly to the SPI bus of the Mega (pins 50-53), or if using
// a non-Mega, Uno-style board.

#include <SD.h>

// comment out this line if using Arduino V23 or earlier
#include <SoftwareSerial.h>         

// uncomment this line if using Arduino V23 or earlier
#include <NewSoftSerial.h>       

// SD card chip select line varies among boards/shields:
// Adafruit SD shields and modules: pin 10
// Arduino Ethernet shield: pin 4
// Sparkfun SD shield: pin 8
// Arduino Mega w/hardware SPI: pin 53
// Teensy 2.0: pin 0
// Teensy++ 2.0: pin 20
#define chipSelect 10

// Pins for camera connection are configurable.
// With the Arduino Uno, etc., most pins can be used, except for
// those already in use for the SD card (10 through 13 plus
// chipSelect, if other than pin 10).
// With the Arduino Mega, the choices are a bit more involved:
// 1) You can still use SoftwareSerial and connect the camera to
//    a variety of pins...BUT the selection is limited.  The TX
//    pin from the camera (RX on the Arduino, and the first
//    argument to SoftwareSerial()) MUST be one of: 62, 63, 64,
//    65, 66, 67, 68, or 69.  If MEGA_SOFT_SPI is set (and using
//    a conventional Arduino SD shield), pins 50, 51, 52 and 53
//    are also available.  The RX pin from the camera (TX on
//    Arduino, second argument to SoftwareSerial()) can be any
//    pin, again excepting those used by the SD card.
// 2) You can use any of the additional three hardware UARTs on
//    the Mega board (labeled as RX1/TX1, RX2/TX2, RX3,TX3),
//    but must specifically use the two pins defined by that
//    UART; they are not configurable.  In this case, pass the
//    desired Serial object (rather than a SoftwareSerial
//    object) to the VC0706 constructor.

// Using SoftwareSerial (Arduino 1.0+) or NewSoftSerial (Arduino 0023 & prior):
#if ARDUINO >= 100
// On Uno: camera TX connected to pin 2, camera RX to pin 3:
SoftwareSerial cameraconnection = SoftwareSerial(2, 3);
// On Mega: camera TX connected to pin 69 (A15), camera RX to pin 3:
//SoftwareSerial cameraconnection = SoftwareSerial(69, 3);
NewSoftSerial cameraconnection = NewSoftSerial(2, 3);

Adafruit_VC0706 cam = Adafruit_VC0706(&cameraconnection);

// Using hardware serial on Mega: camera TX conn. to RX1,
// camera RX to TX1, no SoftwareSerial object is required:
//Adafruit_VC0706 cam = Adafruit_VC0706(&Serial1);

void setup() {

  // When using hardware SPI, the SS pin MUST be set to an
  // output (even if not connected or used).  If left as a
  // floating input w/SPI on, this can cause lockuppage.
#if !defined(SOFTWARE_SPI)
#if defined(__AVR_ATmega1280__) || defined(__AVR_ATmega2560__)
  if(chipSelect != 53) pinMode(53, OUTPUT); // SS on Mega
  if(chipSelect != 10) pinMode(10, OUTPUT); // SS on Uno, etc.

  Serial.println("VC0706 Camera snapshot test");
  // see if the card is present and can be initialized:
  if (!SD.begin(chipSelect)) {
    Serial.println("Card failed, or not present");
    // don't do anything more:
  // Try to locate the camera
  if (cam.begin()) {
    Serial.println("Camera Found:");
  } else {
    Serial.println("No camera found?");
  // Print out the camera version information (optional)
  char *reply = cam.getVersion();
  if (reply == 0) {
    Serial.print("Failed to get version");
  } else {

  // Set the picture size - you can choose one of 640x480, 320x240 or 160x120
  // Remember that bigger pictures take longer to transmit!
  //cam.setImageSize(VC0706_640x480);        // biggest
  //cam.setImageSize(VC0706_320x240);        // medium
  cam.setImageSize(VC0706_160x120);          // small

  // You can read the size back from the camera (optional, but maybe useful?)
  uint8_t imgsize = cam.getImageSize();
  Serial.print("Image size: ");
  if (imgsize == VC0706_640x480) Serial.println("640x480");
  if (imgsize == VC0706_320x240) Serial.println("320x240");
  if (imgsize == VC0706_160x120) Serial.println("160x120");

  Serial.println("Snap in 3 secs...");

  if (! cam.takePicture())
    Serial.println("Failed to snap!");
    Serial.println("Picture taken!");
  // Create an image with the name IMAGExx.JPG
  char filename[13];
  strcpy(filename, "IMAGE00.JPG");
  for (int i = 0; i < 100; i++) {
    filename[5] = '0' + i/10;
    filename[6] = '0' + i%10;
    // create if does not exist, do not open existing, write, sync after write
    if (! SD.exists(filename)) {
  // Open the file for writing
  File imgFile = SD.open(filename, FILE_WRITE);

  // Get the size of the image (frame) taken 
  uint16_t jpglen = cam.frameLength();
  Serial.print("Storing ");
  Serial.print(jpglen, DEC);
  Serial.print(" byte image.");

  int32_t time = millis();
  pinMode(8, OUTPUT);
  // Read all the data up to # bytes!
  byte wCount = 0; // For counting # of writes
  while (jpglen > 0) {
    // read 32 bytes at a time;
    uint8_t *buffer;
    uint8_t bytesToRead = min(32, jpglen); // change 32 to 64 for a speedup but may not work with all setups!
    buffer = cam.readPicture(bytesToRead);
    imgFile.write(buffer, bytesToRead);
    if(++wCount >= 64) { // Every 2K, give a little feedback so it doesn't appear locked up
      wCount = 0;
    //Serial.print("Read ");  Serial.print(bytesToRead, DEC); Serial.println(" bytes");
    jpglen -= bytesToRead;

  time = millis() - time;
  Serial.print(time); Serial.println(" ms elapsed");

void loop() {

Getting this error message:

In file included from Snapshot.cpp:27:
/Applications/Arduino.app/Contents/Resources/Java/libraries/NewSoftSerial/NewSoftSerial.h:71: error: conflicting return type specified for 'virtual void NewSoftSerial::write(uint8_t)'
/Applications/Arduino.app/Contents/Resources/Java/hardware/arduino/cores/arduino/Print.h:48: error:   overriding 'virtual size_t Print::write(uint8_t)'

James C4S

"uncomment this line if using Arduino V23 or earlier"

You aren't using 0023 or earlier, so the line that follows shouldn't be uncommented.
Capacitor Expert By Day, Enginerd by night.  ||  Personal Blog: www.baldengineer.com  || Electronics Tutorials for Beginners:  www.addohms.com

Looking for an example for VC0706 camera.  I'm trying to stream video to computer thru serial port.  All examples that i've seen were saving it to <sd.h>
Tried changing the sd.h to serial port and wrote in serial.print, but still having compile error message. Also took out sd.h files.  Do you have a reference to somebody who has gotten video, or know of a code?


Arduinos are not fast enough (yawn) to stream video.

Its strange that you could find an old dead thread to resurrect in order to ask your question but did not find any of the thousands of threads saying that you can't stream video.



Looking for an example for VC0706 camera.  I'm trying to stream video to computer thru serial port.
You absolutely must be joking - what a waste of time.   :smiley-eek:

Get a $5 webcam, plug it in the USB.  Done!

I see what your saying its really slow and horrible resolution.  Can't it be fixed with an external crystal to turn up clock speed or overclock the processor.  My project I've been working on is an OSD for R/c helicopter.     

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