How to test a cmos sensor without breaking it?
If you search for "2202M datasheet" then you'll find this datasheet that describes your module.

It operates on 3.8V to 5V.  5V to the red wire, ground to the black wire, and it should start right up.  Don't use an SD card with more than 32GB - that's the most it supports.

You cannot see the video live.  You have to trigger an image capture, and the image (or video) is stored on the SD card.

To trigger a capture:


Image - pull the yellow wire to ground for more than 100 milliseconds but less than 500 milliseconds.
Video - pull the yellow wire to ground for more than 500 milliseconds to change recording state.  First time turns on recording, second time stops recording.


There probably isn't a point on the board where you have an easily accessible video signal.  The read out from the camera is probably digital and controlled by that blob covered IC.  The big chip on the other side is a 4 megabit by 16 bit SDRAM IC.  Tapping data off of it probably wouldn't be much fun.

GPIO access on the Pi probably isn't fast enough to capture video.

The easiest solution would be to plug a simple webcam into your Raspberry Pi via USB. You'll probably use OpenCV2 to actually implement your robot's vision, and it includes live access to USB cameras.