If I'm correct the 1st, 2nd and 3rd pictures is voltage regulator. It is not too
hard to design. The 4th picture is a camera. You have to buy it from outside.
It is impossible to build it yourself. The 5th picture is wireless video transmitter.
The transmit frequency is 2.472GHz. Also, you need to buy it from outside. It is
impossible to build it yourself. The 6th picture is the complete item which
putting all the parts together.