This Ray-Ban Meta smart glasses detector helpfully lights up the word 'glasshole' when the specs are nearby, just so we're all aware of exactly what we're dealing with

A person in a yellow bucket hat wearing Meta Ray-Ban smart glasses, approaching a sign that says "glasshole".

I'd say there are few more divisive tech products than smart glasses. Sure, I think we can all see the utility of augmented reality tech mounted on a discreet, sunglasses-framed heads-up-display. However, I'm not sure many of us are comfortable with the idea of internet-connected, outward-facing cameras being pointed at us in public by the people who wear them.

Well, should you be concerned that someone in the near vicinity might be wearing a pair of Zuck-o-specs, may I introduce the Meta Ray-Ban detector (via Hackaday). This handy little device merrily lights up a sign emblazoned with the word "glasshole" whenever a pair are nearby—and the good news is, you can build one for yourself.