LED light painting indicates temperature

PhotonWrangler

Flashaholic
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Oct 19, 2003
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I found this project and it was such a clever use of RGB LEDs for thermal imaging that I had to share it here. The author figured out a clever way to use a single-point IR thermometer senson along with an arduino and some RGB LEDs to paint a thermal image in a room using long exposure times on a camera. This is so cool that I might try it myself using higher power RGB LEDs.
 

AnAppleSnail

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Joined
Aug 21, 2009
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South Hill, VA
Too-high-power LEDs can reflect from the surface and warm the thermocouple sensor. Careful to keep your reflected light below a few mW per mm squared.
 
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