[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.