LoRa project features:

• Send and Receive MessagePack or ASCII encoded JSON measurement data.
• Dockerised InfuxDB, Mosquitto MQTT Broker, Node-RED, and Grafana.
• InfluxDB as the time series database.
• Grafana as the visualization platform.
• Mosquitto MQTT Broker to subscribe and publish LoRa Node measurement and actuation data.
• Node-RED as the flow programming language for creating visual flows.

1. About the Project
2. Project Status
3. Getting Started
   1. Network and Communication Topology
   2. Docker Images and Containers
   3. Node-RED Flows
   4. InfluxDB Database
   5. Grafana Visualization

In this project, the DHT11 temperature and humidity sensor data is collected and sent in JSON format to LG01 LoRa gateway. The JSON Format can be encoded as ASCII or MessagePack.

• The ArduinoJson library is used for de/serializing JSON.
• ArduinoJson library includes a MessagePack de/serializer.
• Visit msgpack.org to learn more.

serializeJson(doc, buf_send, RH_RF95_MAX_MESSAGE_LEN);          //ASCII Encoded JSON buf_send
serializeMsgPack(doc, buf_send, RH_RF95_MAX_MESSAGE_LEN);    //MessagePack Encoded JSON buf_send

• The provided LoRa-MQTT implementation should not be used in production and can only be used for proof-of-concept validation.
• LoRa network redundant packet filteration is not implemented when multiple LoRa gateways is used.

Before starting this project:

• Docker has to be up and running on your device.
• Installing Dragino libraries in Arduino IDE.

Run the following commands in your terminal to download the required images and then build the containers.

docker pull eclipse-mosquitto
docker run -it -p 1883:1883 --name <influxdb container name> eclipse-mosquitto

docker pull nodered/node-red
docker run -it -p 1880:1880 --name <nodered container name> nodered/node-red

The '-v' option stores InfluxDB data into a docker volume in $PWD directory.

docker pull influxdb
docker run -p 8086:8086 --name <influxdb container name> -v $PWD:/var/lib/influxdb influxdb

$PWD is replaced by the current directory that your terminal run in. You can change this directory by replacing it from $PWD to your preferred directory.

docker pull grafana/grafana
docker run -d -p 3000:3000 --name=mygrafana grafana/grafana

Back to top