HomeIoT

HomeIoT is project for smart home automation, simulating a full IoT architecture and providing an user interface to interact with it. IoT devices (lights, motion sensors, thermometers, ...) are all interconnected in a IPv6-based wireless sensor network.

The sensor nodes (motes) are implemented in Contiki-OS and run in the Cooja simulator.
The CoAP protocol enables communication between the motes and a cloud application running the CLI and smart services.

Devices

Here is a list of smart devices emulated in the project:

• bulb: lightbulb
• pir: PIR (motion sensor)
• thermo: thermometer
• heater: heater
• aircond: air conditioner

All the motes support the IPv6 protocol. In addition, a node acts as a border router for the whole network.

CLI

These are the available commands and their description:

• ls: display the currently registered resources
• read: show the status of a resource or a group of them
• set: change the status of a resource or a group of them
• smartlights: get or change the status of the SmartLight service
• smarttemp: get or change the status of the SmartTemperature service
• clear: clear the console output
• help: display help information about a specific command

Smart services

A couple of automated smart services are offered:

• Smart Lights: every time a PIR sensor detects motion, the corresponding room lightbulb is turned on.
• Smart Temperature: when the average temperature recorded by the thermometers is above or below certain thresholds, the heaters or the air conditioners are switched on accordingly.

Usage

Clone the project in a folder inside Contiki, like contiki-ng/examples/HomeIoT.

Assign another IPv6 address to the loopback interface, to make the registration server reachable from the devices:

sudo ip -6 addr add 2001:0db8:0:f101::1/64 dev lo

Cooja

Start Cooja, then import the simulation home_simulation.csc.

Set the simulation speed to 100%, and start it after the cloud app (see the next steps).

Border router

From another terminal, connect to the border router:

cd border-router
make TARGET=cooja connect-router-cooja

Cloud application

Open another terminal to compile the cloud application:

cd cloud-app
mvn install

Then launch it:

cd target
java -jar home-iot-0.0.1-SNAPSHOT.jar

Issues

If you encounter any problem, feel free to open an issue. I am open to pull requests as well.

Credits

The project was developed by Leonardo Lai. Please check the license if you are going to use, modify or share this work.