This app will save every second preview image of the camera to SD card.
Maximum storage number is 600 pictures, if it exceeds it will be removed from the old ones.
Image size is 640x480.
Usage
1. When pressed the record button, and start saving.
2. When you press the pause button to stop the save.
3. When you press the Exit button to exit the app.
Limitations
This app will save a photo every second.
If the saving time of the SD card is more than one second,
unsaved photos will increase and it will abort with an error of memory shortage.
This app will make Internet access for ads.