About Wifi Camera

Radio waves at wifi's wavelength behave similar to light in that they are reflected off almost all solid objects to varying degrees, just as when we see colors we see the light from a light source being reflected off an object into our eyes. And, just as with light, some materials are opaque and some materials are more or less transparent.

We do this basically by pointing a wifi antenna (or several antennas) and measuring the signal strength throughout a view - the faster we can do this, the faster we can create full-screen images.

The latest version of the wifi camera is able to create images much more quickly because it has more pixels and we have a custom built board for analysing the wifi spectrum (around 2.4GHz). The result of all this is that we can even 'see' the illumination cast by mobile phones and microwave ovens!