IoT projects Linnaeus University

Web of Things, Web programming.

Tomato Meter

This website will allow you to check up on one of the cherry tomato plants in my windowsill. We keep track of the air temperature, humidity, soil moisture and light levels and present it as graphs.

The thing is a LoPy4 hooked up with 3 sensors:

DHT11 - Temperature/Humidity Sensor
TSL2591 - Light Sensor
VMA303 - Soil Moisture Sensor

https://github.com/akarlsten/Tomato-Meter

Weather station Visby

IoT weather station, which is up and running as of April 2021 at https://iot.sommarvind.tech/, there is also a short YouTube video describing how it was built.

Presentation: https://youtu.be/0aYAbL72kJo

https://github.com/drmse87/iot-visby-weather

Embedded projects, third year (2021)

Projects in Kalmar

Soil moisture monitoring system with LoRaWAN

Marcus Johansson

Project description

Kalmar municipality presented a few IoT projects for the students at Lnu autumn 2020. One project included an IoT solution for the watering of plants and trees in the county. Such a solution would let Kalmar municipality avoid long travels to remote locations to check if a plant or tree needs water and the amount of water used can be reduced. This is beneficial for the economy and the environment.
The goal for this project is to have soil sensors measuring moisture and communicating the value with LoRaWAN technology. The value is sent to an Android application. Value and location are displayed for the end-user.

Project report repository
Presentation video

Projects in Växjö

Laser Tripwire with CCTV

Albin Ljungdahl
Simon Bäcklund

Project description

Nowadays a lot of people feel like we are living in an increasingly insecure society where you constantly hear and read about break ins in the news. This leads to people looking for higher levels of home security than simply just having locks on the doors. The goal for what the final product of this project will include is 3 different sensors that will each in their own specific way discover if someone breaks into your home and in that case activate the camera, a camera that will record what goes on in the residence and a web server that will host a website where you can both view all videos recorded and watch a livestream of what goes on in your home at all times.

Code repository
Presentation video

Introductory projects first year (2020)

These projects are all done by first year students at Software Engineering and Computer Technology at Linnaeus University in Kalmar and Växjö, during the winter 2020/21. They were given free hands to develop an idea and work with an internet of things projects during five weeks. This is the outcome.

Projects in Kalmar

Grillplatsify, smart monitoring of outdoor fireplaces

Christoffer Eid
Olof Enström
Isak Karlsson

Project description

Vårt projekt är att skapa en hemsida som visar tillgängligheten för grillplatser runt om i städer. För att lyckas med det krävs övervakning på grillplatserna. Det vill säga en enhet med rörelsesensor, samt internetuppkoppling. Enheterna kommunicerar med en server som i sin tur kommunicerar med en hemsida.

Code repository
Presentation video

Smart car counter

Saleh Shalabi
Emelie Sevborn
Elin Björck

Project description

This project aims to provide an better alternate method of keeping track of parking spaces in a parking lot. The current setup is stationary and prone to faults, thus the soulution should be a reliable and portable one.
A portable device to be placed on each driving lane was developed, making use of a motion detector sensor. The sensor is triggered when a car passes over it and data is sent to an app that presents the live number of available parking spaces.

Code repository
Presentation video

Gamepy - your smart game controller

Andreas Axelsson
David Ljungberg
Simon Mira Engström

Project description

This program was made to learn how to use and make IOT devices, and how devices talk to one another. It isn't made to replace another contoller, more a test on how mqtt protocol would handle the commucation beetwen the contoller and a computer. The unit that the gamepy was build upon was a lopy4 unit from pycom, it has four different methods of communication: bluetooth, Lora, Sigfox and Wifi. Our first iterations of the program was mainly focused on making the device talk through bluetooth which we later changed to use wifi. Currently the controller has two joysticks and one button programmed. The contoller speaks with the computer through a local MQTT broker, then the computer uses those inputs with the library PyDirectInput to simulate button presses and mouse movements.

[Code repository](INSERT YOUR URL HERE)

Smart parking system

Peter Dahlberg
Robin Svensson
Henric Tran

Project description

Projektet bygger på ett system som ska hjälpa till att räkna antalet bilar som finns inne på en parkeringsyta. Detta har valts att göras via två separata system, där en fungerar för större parkeringsytor genom att räkna antalet bilar som kör in på området och hur många som kör ut. Det andra systemet är konstruerat för enskilda parkeringar, där man med en enhet kan mäta upp till 8 parkeringsfickor och få information om någon är parkerad där.

Code repository
Presentation video

The AQ-box, indoor environment monitoring

August Rockström
Klas Stegmayr
Edwin Johansson

Project description

Målet med projektet var att skapa en prototyp som kunde generera värden för luftkvaliteten. Värdena som mätts är lufttemperatur, luftfuktighet, koldioxidhalt (ppm) samt ljudnivå. Idén grundar sig i ett initiativ från Kalmar kommun där de ville digitalisera mätningen av just dessa värden i skolmiljöer. Datan som de olika sensorerna läser av skickas till en databas där informationen presenteras i grafer. För att testa prototypen och läsa av värdena placerades enheten ut hemma hos en gruppmedlem under 3 dygn. Det som då kunde konstateras var att värdena låg kring normaliteten bortsett från koldioxidhalten som visade sig ligga en bit över normalen. En förbättringsfaktor är köpet av en ljudsensor som är kapabel till att mäta och skicka data i decibel istället för att endast notifiera när nivån överstiger en viss nivå. Slutsatsen som dragits är att det mätts godtagbara värden för allt som rör luftkvaliteten.

Read more:

[Code repository](INSERT YOUR URL HERE)
Presentation video

Smart lightning in Kalmar

Bianca Björkman
Mattias Stålgren
Emma Lövgren

Project description

Öka ljusstyrka på belysning vid aktivitet exempelvis gång- och cykelvägar.
Bakgrunden till idén är att spara energi och öka tryggheten i Kalmar genom att tända/släcka belysningen efter olika situationer.

Read more:

[Code repository](INSERT YOUR URL HERE)
Presentation video

Projects in Växjö

Thermal sensor drone

Johan Gustafsson
Pierre Oskarsson

Project description

An airborne product that periodically measures surface temperature to detect anomalies and report them via wireless network for visualization and notifications to supervisors.

Read more:

Code repository
Presentation video

Garage monitoring

André Franzen
Daniel Mogensen

Project description

A garage monitoring unit that controls the garage door, automatically vents out if the air is to humid, sends temp and humidity to the "Indoor unit", where you can control the garage door remotely, see status of door and see garage temperature and humidity.

Read more:

Code repository
Presentation video