Mapping Wi-Fi Signal Strength with an ESP8266 and CNC Mill

CNLohr · Demo · 7 min · 2015 · YouTube title: High Res Wifi Signal Mapping

Why it's here

Cited as a cool, concrete visualization of Wi-Fi interference patterns.

What it covers

CNLohr maps Wi-Fi signal strength at high resolution by moving an ESP8266 on a CNC mill, then visualizes the 3D data in WebGL. The result shows interference patterns in space.