Are you aware of any gesture sensor that will work from a further distance from the sensor, such as the ZX Distance and Gesture Sensor: https://www.sparkfun.com/products/13162 but detecting hand waving from several feet away?
Perhaps a pulsed radar?
brow:
Perhaps a pulsed radar?
I just got the XM125 that Sparkfun has started selling. It works great for detection at a few inches. I’m not sure it would work at several feet, although in theory it should be able to. There’s a detection box in the software that defaults from about 3 inches to about 12 inches where it detects, it can be configured but I haven’t had it long enough to really understand the detection range. Having said that, it’s a pretty awesome sensor if you can get it to work right on the device you want it to work on. I’m still working on that part.
I also want to point out that it’s more of a “tap” or “far-away-then-close”/vice versa sensor than a “hand-moved-left-to-right” kind of sensor; I was slightly optimistic about its capabilities but it is still very, very cool.