Camera_driver: add Readme and example of captured image of FC

resources/Camera_driver/Readme.md

@@ -0,0 +1,20 @@
+# Camera driver support package  
+
+Example implementation of camera driver and export of images from OV2640 camera.  
+Data from camera are read from camera into MCU memory and the transmitted via CLI UART and RS-485  
+New image is captured every 2-3 seconds, format is JPEG and resolution 320x240 pixels.  
+If frame is broken (image cannot be open, JPeg corrupted) first frame must be cached,  
+
+## Image capture on computer  
+- Connect Serial adapter to CLI of FC  
+- Connect OV2640 to camera port of FC  
+- Power up FC from stable power source  
+- Reroute serial line into file `(stty raw; cat > received.jpeg) < /dev/ttyUSB0`  
+    -  replace interface name  
+- Wait for image capture (until red LED change state)  
+- Open image or edit it in okteta  
+
+## Example image  
+Image of FC taken by OV2640 connected to same FC  
+
+![](example_image.jpeg)