In ESPHome I can create a sensor and supplement it with any amount of consecutive filters and lambdas. In home-assistant I first need to create a template sensor, then a separate filter entity. In addition, the filter selection is pretty poor compared to ESPHome, and with less configuration options per filter.
And the “on_” automations attached to the sensors can be pretty neat/handy too.
They can both learn a lot from each other I reckon!
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HA templating is a very powerful tool. But I think sometimes that makes it the go-to solution for problems which could be handled better at a lower level.
I agree that more control over how, and which, entities and states are exposed by a device would make a lot more sense than always resorting to creating templates. Voted.