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Cake day: December 2nd, 2023

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  • Zigbee or Zwave temperature/humidity sensors are common. Add a 3-circuit relay box and you can simulate the behavior of pretty much any thermostat with a few rules.

    HA or any other system that can toggle outputs based on sensor thresholds would work just fine.

    there are some subtleties with real HVAC thermostats, like running your AC compressor at least five minutes and ensuring that it stays off for at least 5 minutes when it’s turned off.





  • this may indicate that those ranges are out of gamut for the current color system.

    for example, Rec. 2020 (https://en.m.wikipedia.org/wiki/Rec._2020) can represent a far wider range of color than sRGB (https://en.m.wikipedia.org/wiki/SRGB).

    The R,G, and B sliders are generally referenced to the primaries of the color system in use, but the LCH are referenced to CIE XYZ, so it is common for some ranges of those sliders to be out of gamut.

    Whereas RGB is generally thought of as the volume contained in a cube with orthogonal axes R,G, and B, the volume that LCH points into is a more complex shape, so some values of L, C and H are not valid. When L is 0, the only valid values for CH are 0 (there’s only one black), which you can also think of as being on the outer corner of that volume.