This is an automated archive made by the Lemmit Bot.
The original was posted on /r/homeassistant by /u/Less-Quarter-4885 on 2025-04-22 16:55:02+00:00.
I came across an archived post about visualizing temperature data as a heatmap in Home Assistant — and wanted to share what we’ve been building with Zircon3D.
Zircon3D is a 3D floorplan visualization add-on for Home Assistant that lets you control devices and display sensor data in a fully interactive 3D layout. One of the coolest features is the real-time thermal heatmap layer, which shows live temperature and humidity readings directly on the floorplan.
We offer a free tier that supports up to 25 sensors, which is more than enough to generate a detailed heatmap of your smart home.
It’s easy to set up, and integrates smoothly via a Home Assistant add-on.
Here’s a quick video showing how to set it up in just a few minutes:
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You can learn more or try it out at:
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Would love to hear what others are doing with sensor data visualization or feedback on this!
New to Zircon3D?
Here’s a quick video overview of what it can do — from interactive 3D floorplans to live sensor heatmaps, device control, and more:
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