This question is an exact duplicate of:
In simple, I just want to build some thing like :
CC TV with small monitor and small camera (the smaller the both, the better). . For example, I need it to connect a camera so I can watch real time caption. The camera is not some thing predefined, it can be cellphone camera as well.
I just was wondering, how can I only salvage this 2 parts from a broken mobile, functioning like CCTV camera and monitor. The next phase, could be adding WiFi modules to both camera and screen.