"DoN. Nichols" wrote in message
...

snip
And -- if you have someone with a bushy mustache, have him
breathe through it, and it will light up as his exhaled breath warms it,
and darken as he inhales, cooling it. (Or the opposite, if the system is
switched to hot-dark mode. :-)

Enjoy,
DoN.

I found a video where someone used servos to scan an area with a single IR
sensor and displayed the results, that's what I thought about doing but it
would be too slow for most of what I wanted it for.
https://www.youtube.com/watch?v=iSTZ0l0vfvE

RogerN