The Thermostat card gives control of your climate entity, allowing you to change the temperature and mode of the entity.
Screenshot of the Thermostat card.
To add the Thermostat card to your user interface, click the Lovelace menu (three dots at the top right of the screen) and then Edit Dashboard. Click the plus button in the bottom right corner and select Thermostat from the card picker. All options for this card can be configured via the user interface.
Alternatively, the card can be configured using YAML:
type: thermostat entity: climate.nest