Diff: JPEGCamera.h

Revision:

0:581241ed8da9

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/JPEGCamera.h	Mon Nov 25 08:19:58 2019 +0000
@@ -0,0 +1,122 @@
+
+/* Arduino JPEGCamera Library
+ * Copyright 2010 SparkFun Electronics
+ * Written by Ryan Owens
+ * Modified by arms22
+ * Ported to mbed by yamaguch
+ */
+
+#ifndef JPEG_CAMERA_H
+#define JPEG_CAMERA_H
+
+#include "mbed.h"
+
+/**
+ * Interface for LinkSprite JPEG Camera module LS-Y201
+ */
+class JPEGCamera : public Serial {
+public:
+    /***/
+    enum PictureSize {
+        SIZE160x120 = 0x22,
+        SIZE320x240 = 0x11,
+        SIZE640x480 = 0x00,
+    };
+
+    /**
+     * Create JPEG Camera
+     *
+     * @param tx tx pin
+     * @param rx rx pin
+     */
+    JPEGCamera(PinName tx, PinName rx);
+
+    /**
+     * Set picture size
+     *
+     * @param size picture size (available sizes are SIZE160x120, SIZE320x240, SIZE640x480)
+     * @param doReset flag to perform reset operation after changing size
+     *
+     * @returns true if succeeded, false otherwise
+     */
+    bool setPictureSize(JPEGCamera::PictureSize size, bool doReset = true);
+
+    /**
+     * Return whether camera is ready or not
+     *
+     * @returns true if ready, false otherwise
+     */
+    bool isReady();
+
+    /**
+     * Return whether camera is processing the taken picture or not
+     *
+     * @returns true if the camera is in processing, false otherwise
+     */
+    bool isProcessing();
+
+    /**
+     * Take a picture
+     *
+     * @param filename filename to store the picture data
+     * @returns true if succeeded, false otherwise
+     */
+    bool takePicture(char *filename);
+    /**
+     * Process picture (writing the file)
+     *
+     * @returns true if no error in processing, false otherwise
+     */
+    bool processPicture();
+
+    /**
+     * Perform reset oepration (it takes 4 seconds)
+     *
+     * @returns true if succeeded, false otherwise
+     */
+    bool reset();
+
+    /**
+     * Send a picture command to the camera module
+     *
+     *  @returns true if succeeded, false otherwise
+     */
+    bool takePicture(void);
+
+    /**
+     * Send a stop pictures command to the camera module
+     *
+     *  @returns true if succeeded, false otherwise
+     */
+    bool stopPictures(void);
+
+    /**
+     * Get the picture image size
+     *
+     * @returns the actual image size in bytes
+     */
+    int getImageSize();
+
+    /**
+     * Read the picture data to the buffer
+     *
+     * @param dataBuf data buffer address to store the received data
+     * @param size data size to read
+     * @param address the address of the picture data to read
+     *
+     * @returns the size of the data read
+     */
+    int readData(char *dataBuf, int size, int address);
+
+//private:
+    Timer timer;
+    FILE *fp;
+    int imageSize;
+    int address;
+    enum State {UNKNOWN, READY, PROCESSING, ERROR = -1} state;
+    
+    int sendReceive(char *buf, int sendSize, int receiveSize);
+    int receive(char *buf, int size, int timeout);
+};
+
+#endif