HC8 sensor support

[nusse]

Description:

HC8 CO2 sensor support

This sensor is similar to the common MH-Z19 sensor family, but it uses a different protocol.

Protocol documentation https://spezifisch.codeberg.page/posts/2022-08-23/co2-sensor-reverse-engineering/

This PR implements support for the active output mode sent by the sensor every 1s.

Checklist:

• [x ] The pull request is done against the latest development branch
• Only relevant files were touched
• Only one feature/fix was added per PR and the code change compiles without warnings
• The code change is tested and works with Tasmota core ESP8266 V.2.7.4.9
• The code change is tested and works with Tasmota core ESP32 V.2.0.14
• I accept the CLA.

NOTE: The code change must pass CI tests. Your PR cannot be merged unless tests pass

[Jason2866]

You have to provide the changes in all language files.

[arendst]

Thx.

[mifritscher]

I don't find the sensor in the current precompiled version (both release and development) at https://ota.tasmota.com/tasmota32/ / https://ota.tasmota.com/tasmota32/release/? It is not in the list at https://github.com/arendst/Tasmota/blob/v13.2.0/BUILDS.md as well.

[sfromis]

It is not in any precompiled binaries, you need to do a build with #define USE_HC8

[mifritscher]

Ah, ok. Works, thanks :-)

[mifritscher]

I got the problem, that after a few hours/days, the sensor seems to stop sending messages. A power cycle helps. Do you have any hints?

[mifritscher]

Ah, btw, you can tick the

The code change is tested and works with Tasmota core ESP32 V.2.0.14

;-)