jeans/developers.home-assistant
jeans/developers.home-assistant
1
0
Fork 0
mirror of https://github.com/home-assistant/developers.home-assistant.git synced 2025-07-18 23:06:31 +00:00
Code Issues Packages Projects Releases Wiki Activity

Add blog post about default precision for sensors (#2682)

Browse Source
This commit is contained in:
Abílio Costa 2025-05-28 14:48:25 +01:00 committed by GitHub
parent 3c139515d2
commit 9822f0fd5b
No known key found for this signature in database
GPG Key ID: B5690EEEBB952194
1 changed files with 15 additions and 0 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

15
blog/2025-05-26-sensor-default-display-precision.md Normal file
View File

@ -0,0 +1,15 @@
---
author: Abílio Costa
authorURL: https://github.com/abmantis
title: "Sensor device classes now have default display precision"
---
If a numeric sensor doesn't have a suggested display precision set by its integration, Home Assistant will now use a default display precision based on the sensor's device class.
New device classes should be added to `UNITS_PRECISION` in `homeassistant/components/sensor/const.py`, along with the proper unit and the desired default display precision. See the docstring of that constant for more details on how to choose the right unit and precision.
The rounding that was previously applied to the sensor state when a unit conversion was happening is now removed, and the sensor state contains the full raw value.
It is still recommended that integrations set the `suggested_display_precision` on their sensors. This change is a fallback mechanism to ensure a consistent experience across all numeric sensors.
For more details check the implementation [pull request](https://github.com/home-assistant/core/pull/145013) and the [Sensor entity documentation](/docs/core/entity/sensor).