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====== TreeMap Kamp-Lintfort ======

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===Collecting Sensor Data with LoRa and MQTT===

{{ :eolab:treemap:img_20210610_151102.jpg?200 |}}

To monitor the soil moisture content of a few selected trees in the LaGa area in Kamp-Lintfort, we installed some [[https://www.dragino.com/products/lora-lorawan-end-node/item/159-lse01.html|dragino Lse01]] LoRa sensors.
The sensors send their data via LoRa to an Imst Gateway located on top of the old winding tower, which then forwards the data to a chirpstack server. Since the server has an integrated MQTT-Broker, we can use the MQTT node in node-red to get our data and save it to an influx database. You can find a guide on how to set up the node here: 
[[https://github.com/hschoofs/chirpstack_integrations/tree/main/example_code/mqtt_node_red|node-red MQTT setup with TLS.]] \\
The data is displayed on a [[https://weather.eolab.de/grafana/d/-QK3uw3Mz/laga-lse01?orgId=1&refresh=30m|Grafana dashboard]]. 

[[https://www.antratek.de/lsn50-v2-waterproof-lora-sensor-node|{{ https://cdn.antratek.nl/media/product/bdf/lse01-lorawan-soil-sensor-lse01-eu868-7d5.jpg?400 }}]]
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// Fig.: LSE01 LORAWAN SOIL SENSOR ([[https://www.antratek.de/lse01-lorawan-soil-sensor|Antratek]]) // 

{{ :eolab:treemap:img_20210525_122733.jpg?400 |}}
// Waterproof housing of the LoRa node.
{{ :eolab:treemap:img_20210525_123347.jpg?400 |}}
The sensor is installed in a 30cm deep hole.
{{ :eolab:treemap:img_20210810_142715.jpg?400 |}}
The hole is reinforced with a 15cm long pvc pipe and closed with a lid.