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کد:#include <Adafruit_VC0706.h> #include <SD.h> #include <SPI.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 4 // 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); #else NewSoftSerial cameraconnection = NewSoftSerial(2, 3); #endif 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 #else if(chipSelect != 10) pinMode(10, OUTPUT); // SS on Uno, etc. #endif #endif Serial.begin(9600); 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: return; } // 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 (! 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"); //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() { }
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