Add temperature and humidity calibration to Sonoff SNZB-02D

[fgsch]

Proposed change

Add temperature and humidity calibration to Sonoff SNZB-02D.

Additional information

N/A.

Checklist

• The changes are tested and work correctly
• pre-commit checks pass / the code has been formatted using Black
• Tests have been added to verify that the new code works

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 91.20%. Comparing base (5556090) to head (93a0a57).

Additional details and impacted files

@@           Coverage Diff           @@
##              dev    #3989   +/-   ##
=======================================
  Coverage   91.19%   91.20%           
=======================================
  Files         335      335           
  Lines       10886    10888    +2     
=======================================
+ Hits         9928     9930    +2     
  Misses        958      958           

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[TheJulianJES]

Also, any issues with this PR still, since it's still in draft? Seems like it should work for the most part.

[TheJulianJES]

You should not use the enum TemperatureUnit for the unit — it's expecting a str.
The offset is likely in °C, so use UnitOfTemperature.CELSIUS instead.

[fgsch]

Updated.

[TheJulianJES]

Hmm, technically, the unit for the calibration won't be a percentage, but percentage points.
Don't really think HA uses pp as a unit for entities like this though. I do see at least one HA entity using "%", so this is likely fine.

[fgsch]

Also, any issues with this PR still, since it's still in draft? Seems like it should work for the most part.

Nop, sorry, I just been busy with life. I will try to wrap up this PR this week.

[fgsch]

PTAL.