Accuracy_decimals: HA doesn't obey

ESPHome
1

Hi, up on esphome documentation:

While this does not change the value sent across the API, Home Assistant’s ESPHome integration will round the value accordingly before using or storing it.

should be stored only this decimal changes.
But higher precision is stored and thus fill up database.

   accuracy_decimals: 1

Screenshot from 2026-01-18 17-35-25
Screenshot from 2026-01-18 17-35-25563×356 62.4 KB

2

I suspect the “before storing it” is misleading, the precision is only used for display purposes. You probably want to use the round filter in your sensor.