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by awestroke 1330 days ago
Let's add some IOT wifi-connected temperature sensors with RGB LED
1 comments

That will sell. What a wonderful idea!
In fact let's forget the temperature thing and just do the RGB leds.
Who needs LEDs when you can dual-purpose the power connectors and just run enough current to make them glow?
Hmm, but that will only get us red, and if we're persistent enough, white. That's not good enough for RGB!
Let’s add a propane torch in there so we can get an authentic blue color!
And we would have lngctl to control the flow rate. Occasionally crashing and leading to fires.
Shouldn't we be able to get all colors except pink ?
The color a black body emits at certain temperatures follow the planckian locus (https://en.wikipedia.org/wiki/Planckian_locus). The only saturated primary color on that curve is red.