User Activity Recognition with Azure

Azure Web App that takes the values from the accelerometer of the smarphone using generic sensor API and sends them to Azure IoT Hub. Two types of implementations: edge-based and cloud based.

Cloude-based implementation, edge-based implementation, video and tutorial

CleverWeather

IoT app that allows you to create random values, send them to your Azure IoT hub and visualize them.

CleverWeather was created for Internet of Things course at Sapienza University of Rome.

Important elements of the repository

• publisher.py randomly chooses a device to publish messages, creates random values for temperature, humidity, wind direction, wind intensity and send them to the IoT hub.
• webapp
  • server.js is the core part of the web app. It connects to the IoT hub, calls the function that reads the messages arrived at the hub and reorganize them.
  • public
    • index.html contains the webpage that you see.
  • js
    • chart-device-data.js describes how the charts are visualized and how the number of the devices is handled.
• CleverWeatherRIOTOS
  • main.c runs the RIOT app. Use publisher command to start publishing random messages in a topic of your choice.
• RSMB
  • config.conf is the configuration file of RSMB.
• LoRa
  • main.c RIOT app that connects to TTN using LoRaWAN protocol. Use "loramac publisher" command to start publishing random messages.
• Gateway
  • PythonGateway.py connects to RSMB and sends the messages received to the hub.
  • TTNGateway.py connects to TTN and sens messages received to the hub.
  • TTNconfigurations.ini configuration file for TTNGateway.py. Remember to fill it before running TTNGateway.py.

Requirements

• Azure
  • IoT hub
• Python
  • connection string to the IoT hub for every device set as environment parameter
  • "azure.iot.device" library
  • "paho-mqtt" library
• RSMB
  • clone the mosquitto.RSMB repository.
• RIOT-OS
  • all the requirements specified here.
  • clone the RIOT repository.
• Nodejs
  • npm installed
  • "@azure/event-hubs" extension of npm
  • connection string of the IoT hub (not the device connection string!) set as environment parameter
  • consumer group set as environment parameter

How to use it

Simple modality with random values created by python

1. Go to the folder where there's publisher.py and write in the command line python publisher.py

2. Open another command line, go in the webapp folder and write npm start

3. At this point you can open your browser on http://localhost:3000 and visualize data.

Random values created by RIOT app and MQTTSN protocol

1. Really Small Message Broker

   1. Compile the repository previously cloned: cd rsmb/src make

   2. Copy config.conf file contained in RSMB folder to mosquitto.rsmb/rsmb/src directory. From mosquitto.rsmb/rsmb/src directory execute the Really Small Message Broker: ./broker_mqtts config.conf

2. RIOT app

   1. Copy CleverWeatherRIOTOS folder into RIOT folder. Open a second teminal in RIOT directory and create tap0, tap1 devices and tapbr0 typing: sudo ./RIOTDIR/dist/tools/tapsetup/tapsetup

   2. To check if they have been correctly created: ifconfig | grep tap

   3. Assign a site-global prefix to the tapbr0: sudo ip a a fec0:affe::1/64 dev tapbr0

   4. To execute the app with tap0 device (you can also run it with tap1) from native: cd CleverWeatherRIOTOS make all term PORT=tap0 BOARD=native

   • During the execution of the app:
     • assign a site-global address with the same prefix within the RIOT native instance: ifconfig 5 add fec0:affe::99
     • See all the possible commands of the app: help
     • Connect to the previously created broker at port 1885: con fec0:affe::1 1885
     • Start publishing messages with random values in : publisher <topic>

3. Gateway

   1. Open a third terminal, go to Gateway folder and type python PythonGateway.py

4. Web app

   1. Open another command line, go in the webapp folder and write npm start
   2. At this point you can open your browser on http://localhost:3000 and visualize data.

Random values created by RIOT app and LoRaWAN protocol

1. IoT-LAB and TTN app

   1. Follow the tutorial

2. Gateway

   1. Go to Gateway folder and fill TTNconfigurations.ini with the values of your TTN app, TTN devices and IoT Hub.
   2. Open another terminal there and type python TTNGateway.py

3. Web app

   1. Open another command line, go in the webapp folder and write npm start
   2. At this point you can open your browser on http://localhost:3000 and visualize data.

Tutorial

Follow the tutorial and whatch the video to find out how to use CleverWeather.
For more information on CleverWeatherRIOTOS: tutorial and video.
CleverweatherLoRa tutorial and video.