Hi. I'm newbie in Arduino. And i have a trouble. I'm making a security system with 2 sensors, TTL Adafruit Camera, Servo motor, Arduino Uno, and Ethernet shield (for sd card only). If sensor catch a movement, servo motor turns to that sensor, and capture a picture, and save it to SD card. It works till saving to SD card. But while saving picture to SD card, servo motor is atypical. Moving uncontrollable. What should i do? Here is the code:
#include<Servo.h>
#include<Wire.h>
#include<SPI.h>
#include<SD.h>
#include<SoftwareSerial.h>
#include <Adafruit_VC0706.h>
#define chipSelect 4
#if ARDUINO >=100
SoftwareSerial cameraconnection = SoftwareSerial(2, 3);
#else NewSoftSerial cameraconnection = NewSoftSerial(2, 3);
#endif
Adafruit_VC0706 cam=Adafruit_VC0706(&cameraconnection);
Servo myservo;
const int sensor1=7;
const int sensor2=8;
const int button= 5;
const int buzz= 6;
int a1, a2, key, val, pos;
void camera1();
void setup(){
pos=0;
if(chipSelect !=4) pinMode(4, OUTPUT);
if (!SD.begin(chipSelect)) {
Serial.println("Card failed, or not present");
}
Serial.begin(9600);
Serial.println("Security Camera");
myservo.attach(9);
pinMode(buzz, OUTPUT);
pinMode(sensor1, INPUT);
pinMode(sensor2, INPUT);
pinMode(button, INPUT);
}
void loop(){
a1= digitalRead(sensor1);
a2= digitalRead(sensor2);
key=digitalRead(button);
if(key==HIGH) {
if(a1!=HIGH && a2!=HIGH) // Both Sensor is deactivated
val=0;
if(a1!=HIGH && a2==HIGH) // First sensor is deactivated, and second sensor is activated. For this condition, Camera will capture a picture
val=1;
if(a1==HIGH && a2!=HIGH) // First sensor is activated, and second is deactivated
val=2;
if(a1==HIGH && a2==HIGH) // Both sensor is activated
val=3;
switch(val){
case(1):{
if(pos<45){
for(; pos <= 45; pos += 1)
{
myservo.write(pos);
delay(15);
}
}
if(pos>45){
for(; pos>45; pos-=1){
myservo.write(pos);
delay(15);
}
}
digitalWrite(buzz, HIGH);
camera1(); //Jumping to Camera Function
break;
}
case(2):
for(; pos <= 135; pos += 1)
{
myservo.write(pos);
delay(15);
}
digitalWrite(buzz, HIGH);
break;
case(3):
for(; pos <= 135; pos += 1)
{
myservo.write(pos);
delay(15);
}
for(; pos>=45; pos-=1)
{
myservo.write(pos);
delay(15);
}
digitalWrite(buzz, HIGH);
break;
default:
break;
}
}
else
pos=0;
}
void camera1(){
// 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("Snapping...");
delay(3000);
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.");
// 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();
Serial.println("done!");
}
I copied camera codes from Adafruit tutorial. It's capturing picture for only one condition. Sorry for bad language
