Add support for Smartmi Evaporative Humidifier 3 (zhimi.humidifier.ca6) support to xiaomi_miio

[smoroz (Sergey)]

HA and python-miio currently support Smartmi Evaporative Humidifier 2 (zhimi.humidifer.ca4).

Please add support for Smartmi Evaporative Humidifier 3 (zhimi.humidifier.ca6). It is similar to ca4. It even works if one manually specifies the ca4 model in the configation. But there substantial differences:

• Modes are different, i.e. there are three modes: Fav (aka Max), Auto, Sleep.
• Water level meaning is different, i.e. 0 - min/empty, 1 - normal, 2 - max/full.
• Target humidity max level is 60%, instead of 80%.

Here are ca6 specs:

• Smartmi Evaporative Humidifier 3 - 产品规格 - Xiaomi Miot Spec
• https://miot-spec.org/miot-spec-v2/instance?type=urn:miot-spec-v2:device:humidifier:0000A00E:zhimi-ca6:1

I have already submitted issue to python-miio (Add support for Smartmi Evaporative Humidifier 3 (zhimi.humidifier.ca6) support to xiaomi_miio · Issue #1884 · rytilahti/python-miio · GitHub).

[smoroz (Sergey)]

I have implemented initial support of zhimi.humidifier.ca6.

• PR to python-miio is here
• home-assistant/core branch is here

I will work now to make these available upstream.

Here are a few screenshots:

[gechu (Erik)]

Great! Is it possible to determine if this PR is part of a Home Assistant release?

EDIT: By looking in the github platform I mean