Hello everyone, I’ve been diving into optimizing my Home Assistant setup, particularly focusing on sensor data formatting. I’ve got a variety of sensors around my home measuring everything from temperature to humidity, and I’ve noticed that the default decimal places are often more precise than I need. For instance, my temperature sensors display two decimal places, which is a bit excessive for my purposes. I’d prefer to have just one decimal for temperatures and round humidity readings to the nearest whole number.
Initially, I was creating individual templates for each sensor, but this approach became cumbersome as I added more sensors. It not only took a lot of time but also cluttered my database with unused entities, making maintenance a hassle. I started wondering if there was a more efficient way to handle this—something that could apply formatting rules universally based on the sensor’s unit.
After some research, I discovered that Home Assistant allows for entity card formatting using the format option. However, this feature is typically applied on a per-card basis, which doesn’t solve my issue of needing a system-wide rule. I’m curious if there’s a way to automate this process, perhaps through a custom script or integration, so that all entities with the same unit are formatted consistently. For example, every sensor with the unit °C could automatically be rounded to one decimal place without needing individual templates.
I’d love to hear if anyone else has tackled this challenge and how they approached it. Maybe there’s a clever workaround or an existing integration that I haven’t come across yet. Let’s brainstorm together on how to streamline sensor data formatting in Home Assistant!