Fixes "preset not found" issue when using internal temp UM

[lost-hope]

fixes #4390

[softhack007]

Changes look good for me 👍

🤔 Actually I'm still wondering why someone would use a temperature sensor that's so inaccurate for anything like a safety function - but that's another matter.

Just to explain "inaccurate" - I have two esp32 sitting next to each other, doing the same thing. Internal temperature for the first is 50°C, the second shows 78°C. And in reality, both are note even "Luke warm" when I touch the esp32 with my finger. This tells me that the internal temp sensor of esp32 is really a useless toy nothing more.

[orbitinstasis]

Changes look good for me 👍

🤔 Actually I'm still wondering why someone would use a temperature sensor that's so inaccurate for anything like a safety function - but that's another matter.

Just to explain "inaccurate" - I have two esp32 sitting next to each other, doing the same thing. Internal temperature for the first is 50°C, the second shows 78°C. And in reality, both are note even "Luke warm" when I touch the esp32 with my finger. This tells me that the internal temp sensor of esp32 is really a useless toy nothing more.

I found the bug - the SoC dye is a heck of a lot hotter than the actual carrier board, and I wouldn't really rely on it for a safety feature (for that I use a proper sensor with the dallas usermod), but this mod gives a nice idea of how the ambient temp is affecting the SoC for certain environments say where the electronics is enclosed, you'd want a dye temp and an ambient temp.

[DedeHai]

just FYI, from the docs:

the default range is -10°C - 80°C so it should be fairly accurate, if all you need is the die temperature.

[lost-hope]

Closing this after talking to @netmindz to make a new PR against main branch.
#4397 is the new one