I am building an Arduino (https://www.arduino.cc/en/Main/ArduinoBoardUno) device that will record video based on a motion sensors, as well as other data in the environment. The thing is, I need to record from within a box to the outside, but the camera should not be visible. Any ideas or advice on how and what to use?

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    If the camera can see you, you can see the camera (except possibly through a half-silvered mirror). All you can do is disguise it, for example "teddy-bear cams". How big is the lens opening? What are the surroundings? How is the scene lit? More details will help.
    – Jim Mack
    Feb 2, 2016 at 12:43

2 Answers 2


If quality of video is not so important to you, then you can use effect, which is used on public transport windows: enter image description here

It is when you use lot of dots on the glass. From the outside it looks like semitransparent image. But from inside it will look like that: enter image description here

With correct focus dots will be less visible on video.

And second option is to use half-silvered mirror.


Traffic cameras and security cameras shoot through a dark glass, so you could use something like that.

I'm sure you've seen those black domes in stores - it's called a Pan/Tilt/Zoom (PTZ) dome. You might look in the area of security camera accessories.

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