Time marches on - ai-speed-camera obselete

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Using a Blink $25 indoor camera and a $25 Blink synch module, along with Camlytics Single (https://camlytics.com/help/v2/analytics#calibration) s/w for $129 you can save a lot of fiddling. See, too, https://camlytics.com/solutions/calculate-vehicle-speed