Absolute temperature readings

[vic4hub]

Hey Guys (@Blystad / @maartenvds / @fnoop ),

Thanks for such an awesome write up and contribution! I've been looking into the absolute temperature "feature" and I believe I've got enough information. I figured flir had to do the same thing with their older sensors, sure enough I stumbled on this forum article:
https://lepton.flir.com/forums/topic/read-temperature-value-from-lepton/ :

You’d need to point your Lepton at a blackbody and record the blackbody’s temperature as well as the counts read from the Lepton. By correlating enough of these data points, one could create a polynomial function that would be used in this way: f(lepton_counts) = temp_reading

Here’s the answer from our FAQ for more information:
Obtaining temperature readings is a difficult task. A blackbody is used to obtain many samples that are used to generate a polynomial function based on Planck’s law. Typically, the calibration process would be done per Lepton.

Let me know if this makes sense for seek hardware.

Thanks,

Victor