Intermediate. Assumes working knowledge.
550K views11 years ago1 recommendation
HardwareGraphics and audioEmbedded systemsNetworking and protocolsCreative coding
Charles Lohr demonstrates how he mapped Wi-Fi signal strength in 3D space using an ESP8266 mounted on a CNC mill and visualized it with WebGL.
Special Thanks to Unit-E technologies and Eric Holniker for letting me use their mill. Check out Neon FM here: youtube.com/watch?v=ADV7C16356c Voxeltastic: cnlohr.github.io/voxeltastic/ HackADay IO: hackaday.io/project/4329-wifi-power-mapping Imgur: imgur.com/gallery/jdNA6 Github: WebGL Visualization tool: github.com/cnlohr/voxeltastic Data Compositing: github.com/cnlohr/wificompositer Firmware for ESP8266: github.com/cnlohr/ws2812esp8266 Software for reading data from mill and getting wifi RX power: github.com/cnlohr/wifirxpower Software for compositing video into a single long-exposure image: github.com/cnlohr/superlongexposureWhat people say. Engineers point to this video as a classic demonstration of visualizing electromagnetic interference patterns in physical space.
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