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Continue to ChatWifi Light Painting (show wifi signal as it travels trough the air) https://snott.net/tech/wifi-light-painting-show-wifi-signal-as-it-travels-trough-the-air/
Wifi Light Painting (show wifi signal as it travels trough the air) https://snott.net/tech/wifi-light-painting-show-wifi-signal-as-it-travels-trough-the-air/