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please explain more on temperature offset

Open supercazzola opened this issue 3 years ago • 5 comments

I understand that the first two hex vales to send for correcting temperature offset are FA and then the next two should be the offset where you need to convert an int8 to hex. I just do not know how to convert an int8 to hex. I looked online and can not find a table. I see that the command FA00 is sent when you tell the firmware webpage to reset to zero offset. I assume FA01 would change the offset by +1 degree C. I would like to know how to represent negative numbers for example, how do I tell the device I need to have the offset be 2 degrees C cooler than what it displays right now?

supercazzola avatar Jan 23 '22 01:01 supercazzola

You first get the value you want. Let's say +2.0C that's represented int8 = 20 you convert it to hex = 14 you type in FE14 and click Send

The refresh is not immediate, I saw it changing in about 1 minute

OscarHanzely avatar Jan 28 '22 22:01 OscarHanzely

what about a negative offset? thanks

Alllfff avatar Feb 28 '22 11:02 Alllfff

Hate to bump a question, but is there a way to set a negative offset ? All of my sensors seem to read high for what ever reason

robertely avatar Sep 21 '22 01:09 robertely

Same here, I really would like to set a negative offset. Anyone nows how?

LawDeveloper avatar Oct 25 '22 05:10 LawDeveloper

Has anyone tried sending FEEC? It should result in an offset of either -2.0 or +23.6. I don't have a device at hand to test it.

jalbarl avatar Nov 11 '22 20:11 jalbarl