DeviceHive LoRa gateway

This project implements LoRa gateway using DeviceHive cloud service. It is a transparent gateway between DeviceHive cloud service and LoRa radio.Everything which LoRa receives sends to DeviceHive server as notifications. Command 'lora' transmit 'data' field into LoRa. It is a transparent gateway between DeviceHive cloud service and LoRa radio.

Hardware

This project uses Dragino LG01 gateway as a reference hardware.

Installation

Make sure that gateway firmware version is 4.3 or newer. You can get new firmware here

• Install Python DeviceHive library. Connect with ssh to the router (ssh root@10.130.1.1, password dragino by default) and run:

curl -SL https://github.com/devicehive/devicehive-python/archive/2.1.0.tar.gz | tar zx
cd devicehive-python-2.1.0/
python setup.py install
cd ..
rm -rf devicehive-python-2.1.0/

• Copy gateway package:

mkdir -p /opt/devicehive && curl -SL https://github.com/devicehive/lora-gateway/releases/download/v0.0.2/gateway.tar.gz | tar zx -C /opt/devicehive

• Install it with:

/opt/devicehive/gateway.py install

This command flashes firmware into gateway. Firmware automatically boots on power on and starts Python part.

• Configure gateway with DeviceHive server URL, credentilals and LoRa frequency. Open web browser http://gateway-ip:8000 and enter settings there. Click on save.

To remove it completly, remove /opt/devicehive directory, pip uninstall devicehive and flash(or just leave it) any new firmware to the microcontroller part of the gateway.

Usage

Gateway boots automatically on power on. It works on specfied in config frequency and receives all LoRa packages which send to DeviceHive server as notifications. Notification name is always LoRa. Parameters contains field data which is the data that was received. rssi field means received signal strength indicator, units are dBm. Example:

{
  "data": {
           "A1":1.63,
           "A0":1.77,
           "A3":1.33,
           "A2":1.48,
           "A5":0.64,
           "A4":1.15
  },
  "rssi": -45
}

If LoRa data is a json it will be json object in this field. If LoRa data is a string or raw data it will be string object in this field. Any non pritable character, it will be escaped with \\x00 sequence where 00 is hex code of char. For example newline char \\x0a.

To send data to LoRa, send a command to dateway device with LoRa name(case insensetive) and data field in the parameters. It can be json object or string which will be sent as bytes to radio. Any non pritable charactes should be escaped with \\x00 sequence where 00 is hex code of char.

Sample LoRa device

There is a simple Arduino based(with LoRa hat) devices sample. This sample can be used for test of demo purpose. See details here.

Building from sources

To build firmwares and/or flash it separatly use Arduino IDE. More deatiled description about operating Dragino gateway is aviliable here. To generate release tarball:

• build lora-gateway-firmware with Arduino IDE(Sketch -> Export compiled Binary)
• run gen_release.sh script Tarball will be created in repo root directory.

License

Apache License, Version 2.0. See LICENSE file