A man has a relatively simple way to have a large number of data points about wi-fi signal from a network in a space, and this on a 2d plane or in 3d. The 3d view shows the places in a room with good signal.
Hackaday-user CNLohr used an ESP8266 module that he has to his laptop covenant to provide information on the signal strength to obtain. By the module at 500Hz to ping, he got a lot of data points and by the module slowly over a surface to slide, he could the signal points of that plane read. The data about the signal strength he used to have a led to light up, whereby the strength of the color.
By shots with long exposure, could range be displayed visually. For ‘measure’ of the signal in a three-dimensional space, he used a computer-controlled houtfrees. In the 3d view are the places in blue are the positions with the best signal strength and green indicates good view. The intervening areas had no coverage. The man’s statement about his method to be published online at Hackaday.
