Hi guys,
I am working on a school project. I need to get the acc data at z axis then use it to trigger camera module (ov0706) in order to get a snapshot when acc_z data goes above of a predefined value ( for example 410 ) Here is my raw code ı am trying to use:
#include <Adafruit_VC0706.h>
#include <SPI.h>
#include <SD.h>
#include <SoftwareSerial.h>
#define chipSelect 10
#if ARDUINO >= 100
SoftwareSerial cameraconnection = SoftwareSerial(2, 3);
#else
NewSoftSerial cameraconnection = NewSoftSerial(2, 3);
#endif
Adafruit_VC0706 cam = Adafruit_VC0706(&cameraconnection);
const int xPin = 0;
const int yPin = 1;
const int zPin = 2;
File mySensorData;
void setup() {
#if !defined(SOFTWARE_SPI)
#if defined(__AVR_ATmega1280__) || defined(__AVR_ATmega2560__)
if(chipSelect != 53) pinMode(53, OUTPUT); // SS on Mega
#else
if(chipSelect != 10) pinMode(10, OUTPUT); // SS on Uno, etc.
#endif
#endif
Serial.begin(9600);
Serial.println("VC0706 Camera snapshot test");
if (!SD.begin(chipSelect)) {
Serial.println("Card failed, or not present");
return;
}
int xRead = analogRead(xPin);
int yRead = analogRead(yPin);
int zRead = analogRead(zPin);
Serial.print("x: ");
Serial.print(xRead);
Serial.print(" | y: ");
Serial.print(yRead);
Serial.print(" | z: ");
Serial.println(zRead);
if (cam.begin()) {
Serial.println("Camera Found:");
} else {
Serial.println("No camera found?");
return;
}
// Print out the camera version information (optional)
char *reply = cam.getVersion();
if (reply == 0) {
Serial.print("Failed to get version");
} else {
Serial.println("-----------------");
Serial.print(reply);
Serial.println("-----------------");
}
cam.setImageSize(VC0706_640x480); // biggest
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...");
delay(3000);
if (analogRead(zPin) >= 400)
{
if (! cam.takePicture())
Serial.println("Failed to snap!");
else
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)) {
break;
}
}
// 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
Serial.print('.');
wCount = 0;
}
//Serial.print("Read "); Serial.print(bytesToRead, DEC); Serial.println(" bytes");
jpglen -= bytesToRead;
}
imgFile.close();
time = millis() - time;
Serial.println("done!");
Serial.print(time); Serial.println(" ms elapsed");
}
void loop()
{
int xRead = analogRead(xPin);
int yRead = analogRead(yPin);
int zRead = analogRead(zPin);
Serial.print("x: ");
Serial.print(xRead);
Serial.print(" | y: ");
Serial.print(yRead);
Serial.print(" | z: ");
Serial.println(zRead);
String dataString="";
for(int analogPin = 3; analogPin < 3; analogPin++ )
{
int sensor = analogRead(analogPin);
dataString += String(sensor);
if(analogPin < 2)
{
dataString += "," ;
}
}
File mySensorData = SD.open("SensorData.txt", FILE_WRITE);
delay(2000);
mySensorData.println(dataString);
mySensorData.close();
delay(5000);
// Try to locate the camera
if (cam.begin()) {
Serial.println("Camera Found:");
} else {
Serial.println("No camera found?");
return;
}
// Print out the camera version information (optional)
char *reply = cam.getVersion();
if (reply == 0) {
Serial.print("Failed to get version");
} else {
Serial.println("-----------------");
Serial.print(reply);
Serial.println("-----------------");
}
// 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...");
delay(3000);
if (analogRead(zPin) >= 400)
{
if (! cam.takePicture())
Serial.println("Failed to snap!");
else
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)) {
break;
}
}
// 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
Serial.print('.');
wCount = 0;
}
//Serial.print("Read "); Serial.print(bytesToRead, DEC); Serial.println(" bytes");
jpglen -= bytesToRead;
}
imgFile.close();
time = millis() - time;
Serial.println("done!");
Serial.print(time); Serial.println(" ms elapsed");
}
It tooks approximately 27-28 seconds to write the .jpeg image into SD-card, ı want it to take photo only when z_axis acc value goes above a predefined value, not in every 30 seconds or sth like that. I am kinda new to programming Arduino so ı got stuck between code lines.
I am using ov0706 ttl serial camera for my project as well as adel 335 and sd card. I am running this script in Arduino Uno.
Any kind of help is appreciated.