Replying to Avatar John Dee

I made a Grafana dashboard to monitor soil moisture throughout my garden:

The measurements are not consistent across sensors, so I've been watching what happens after watering (the spikes) and estimating field capacity for each sensor (the green dashed line).

#grafana #homeassistant #permaculture #grownostr
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Moor Orchard 2y ago

Hey,

love it.

Could you share the example how you set up the measurement and how the data flow is processed?

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John Dee 2y ago

Vegtrug sensor sends Bluetooth BLE beacons to an ESP32 running ESPHome, powered by a power bank that outputs USB-C (other types will shut off automatically). ESPHome runs in Home Assistant and stores data into InfluxDB for graphing with Grafana.

The sensors are best used for relative moisture at a single point rather than comparing moisture between locations. I look for the spike after watering, and then estimate the percentage for field capacity after it drains for a few hours.