![[OC] Visualizing the microclimate of an automated indoor garden: Tracking Temperature, Humidity, and Vapor Pressure Deficit (VPD)](https://www.byteseu.com/wp-content/uploads/2026/03/y3tijf31z9rg1-1536x1283.png "[OC] Visualizing the microclimate of an automated indoor garden: Tracking Temperature, Humidity, and Vapor Pressure Deficit (VPD)")
I built this dashboard to monitor and automate a DIY indoor garden. The most important metric here is the VPD (Vapor Pressure Deficit). VPD measures the drying power of the air. If it's too high, plants dry out; if it's too low, they can't transpire and might rot. Maintaining a stable VPD is crucial because it ensures a constant, optimal rate of water and nutrient uptake, maximizing plant growth while preventing environmental stress.
Data is sent via mqtt to a server, stored in a Prometheus, and visualized using Grafana.
Posted by i-error
3 Comments
As someone in digital marketing, do you offer classes on how to build dashboards? 😍
This is beautiful
This is really clean. Curious how tight you’re actually keeping VPD over time, like are you actively controlling it or mostly monitoring and reacting? I’ve tried similar setups and the drift during lights off always messes with my ranges.
What sensors are you using for the measurements? I’m trying to improve my own indoor garden to produce higher quality plants.
What devices are you using to regulate the VPD?