Add support for climate component, platform: modbus

[ionutgogu]

Describe the problem you have/What new integration you would like

Possibility to create a climate component using platform: modbus to be able to write/read directly to registry addresses or to an already defined sensor:

Example:

• name: "hp_water_climate"       address: 1020       register_type: holding       value_type: S_WORD       multiply: 10       max_temp: 60       min_temp: 15       offset: 0       precision: 1       scale: 0.5       temp_step: 0.5       temperature_unit: C       operation_modes:           - "on"            - "cool"            - "heat"

Please describe your use case for this integration and alternatives you've tried:

Integrate a heatpump into homeassistant using modbus rtu and esphome

Additional context

[ssieb]

Does the modbus device actually have climate controls? Do you have documentation? I remember you asking about this on discord, but you didn't respond when I asked for more information.

[ionutgogu]

Hi, unfortunately I did not saw your question on discord, it is not related to one device, almost all hvac devices with modbus have climate option, see homeassiatant core modbus integration:

https://www.home-assistant.io/integrations/modbus/

Now I am using an USB_RS485 adapter, the above integration and will be nice to use ESPHome.