gistfile1.ino

// This program takes a snapshot and sends it to the XBee module

#include <Adafruit_VC0706.h>
#include <SoftwareSerial.h>
#include <XBee.h>
#include <PString.h>

// On Uno: camera TX connected to pin 2, camera RX to pin 3:
SoftwareSerial cameraconnection = SoftwareSerial(2, 3); // Arduino RX, TX
Adafruit_VC0706 cam = Adafruit_VC0706(&cameraconnection);
XBee xbee = XBee();

void sendImagePayload(uint16_t bytesRemaining, uint8_t bufferLength, uint8_t *buffer) {
  uint8_t payload[bufferLength+4];
  payload[0] = 0xf4;  // payload type
  payload[1] = highByte(bytesRemaining);
  payload[2] = lowByte(bytesRemaining);
  payload[3] = bufferLength;
  for (uint8_t i=0; i<bufferLength; i++) {
    payload[i+4] = buffer[i];
  }
  
  // Specify the address of the remote XBee (this is the SH + SL)
  XBeeAddress64 addr64 = XBeeAddress64(0x0, 0x0); // Coordinator address
  
  // Create a TX Request
  ZBTxRequest zbTx = ZBTxRequest(addr64, payload, sizeof(payload));
  
  // Send your request
  xbee.send(zbTx);
}

void sendInfoPayload(String info) {
  info.replace('\n', ',');
  info.replace('\r', ' ');
  char payload[2+info.length()];
  payload[0] = 0xf3;  // payload type
  PString infoString(&payload[1], sizeof(payload)-1);
  infoString.print(info);
  
  // Specify the address of the remote XBee (this is the SH + SL)
  XBeeAddress64 addr64 = XBeeAddress64(0x0, 0x0); // Coordinator address
  
  // Create a TX Request
  ZBTxRequest zbTx = ZBTxRequest(addr64, (uint8_t *)payload, sizeof(payload));
  
  // Send your request
  xbee.send(zbTx);
}

void setup() {

  Serial.begin(57600);

  sendInfoPayload("VC0706 Camera snapshot test");
  
  // Try to locate the camera
  if (cam.begin()) {
    sendInfoPayload("Camera found.");
  }
  else {
    sendInfoPayload("No camera found?");
    return;
  }

  // Get the camera version
  char *reply = cam.getVersion();
  if (reply == 0) {
    sendInfoPayload("Failed to get version");
  }
  else {
    sendInfoPayload(reply);
  }
  
  // Set the picture size
  cam.setImageSize(VC0706_640x480);        // biggest

  // Turn on motion detection  
  boolean flag = cam.setMotionDetect(true);           // turn it on
  if (cam.getMotionDetect())
    sendInfoPayload("Motion detection is ON.");
  else
    sendInfoPayload("Motion detection is OFF.");
}

void loop() {
  if (cam.motionDetected()) {
    cam.setMotionDetect(false);
    // Take the picture
    sendInfoPayload("Motion detected - taking snap now...");
    if (! cam.takePicture()) 
      sendInfoPayload("Failed to snap!");
    else
      sendInfoPayload("Picture taken!");
    
    // Get the size of the image (frame) taken
    uint16_t jpglen = cam.frameLength();
    sendInfoPayload("Sending " + String(jpglen, DEC) + " byte image.");
  
    int32_t time = millis();
    // Read all the data up to # bytes!
    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);
      jpglen -= bytesToRead;
      sendImagePayload(jpglen, bytesToRead, buffer);
    }
    time = millis() - time;
    sendInfoPayload(String(time)+" ms elapsed");
    cam.resumeVideo();
    cam.setMotionDetect(true);
  }
}