What is Arctic Challenge?

Arctic Challenge is a one-of-a-kind Hackathon focusing on Blockchain, 5G, Lora WAN, IoT Platform, Edge Computing, Information security and more.
From Tuesday December 7th to Thursday December 9th hackers, and the tech community collaborate, and experiment on the subjects above.
This is a hybrid event, both physical and virtual participants are welcome!
This is the time to meet other enthusiastic hackers, push your boundaries, and realize the projects of your dreams!

The initiative was jointly conceived by Skelleftea Digital Alliance and the projects SSiO, DIT4BEARs, Arctic 5G Test Network,
Wireless Innovation Arena and 5G för vård och omsorg i Övre Norrland.
It is supported/sponsored by Skellefteå Science City, DF Skellefteå, Luleå University of Technology, Skellefteå municipality, NUITEQ and other companies and organisations. For the full list, see below under sponsors.

This year some of the sponsoring organisations will present challenges, and the teams choose challenges from that list.
First we will see to every challenge is met by some team. After that we open the challenge list for a new round.
A jury shall review, evaluate, and award winners on December 9, 2021.
Venue: The Great Northern, Skelleftea

Come, join us and register here!

Winners of the Arctic Challenge Hackathon 2021

Team: Nordcoder

Members: Fatema Mirza, Wania Khan, Otabek Sobirov, Md Abu Ahammed Babu, Mohammad Newaj Jamil

Challenge: The sound challenge

Here you can see all the team’s final presentations:

The Immutables –

NordCoders –

Djangos on chain –

4everWIN –

Team 5 –

and the prize awards –

The jury consisted of:



Time in CET


13.00 The hackathon starts.

14.30 Swedish fika.

17.00 Dinner is served in the hackathon preises. (No cost for participants and officials.)

23.00 The hackathon closes for the night.


08.00 Breakfast, is served in the hackathon premises. (No cost for participants and officials.)

11:00 - 12:00 Presentation of results so far. Feedback from the jury.

12:00 Lunch break.
17.00 Dinner is served in the hackathon premises. (No cost for participants and officials.)
23.00 The hackathon closes for the night.


08.00 The hackathon starts again. Breakfast is served in the hackathon premises. (No cost for participants and officials.)

11:00 - 12:00 Final presentations.

12:00 - 13:00 Lunch (No cost for participants and officials.) Awards ceremony and summary.



Can I attend?

Anyone who has the competence to attend is welcome.
We especially invite students.

I want to participate virtually. How does that work?

You can participate both physically (in Skellefteå, Sweden) and virtually.
The virtual/digital hackathon happens entirely online and you will collaborate remotely with your team.
We will use the video meeting platform Zoom for this.

Awards and criteria

The best contributions will get awards. Mostly this will be symbolic awards like diplomas.
The jury evaluates each contribution regarding the following criteria, and give 1 to 5 points for each criteria. The contribution with the highest score then is the winner.

· Visualisation – How aesthetic and creative is the visualisation?
· Usefulness – How useful is the contribution and how easy is it to use for the intended target group?
· Innovation – How innovative is the contribution?
· Business potential – How high is the business potential for the contribution?

Regardless of the score, we might decide to support any of the contributions for further development.


You bring your own laptop to work on.
We will take care of the rest.

What will I eat?

We’ll provide food for all meals.
If you have dietary restrictions, we’ll try our best to accommodate them.

What should I bring?

Bring a laptop for hacking.

Where’s the schedule?

Here it is: Schedule

How do teams work?

Teams are at most 6 people. It will be possible to find teammates when the hackathon starts.

How does registration work?

If we get too many registrations we will select participants based on our target groups and time of registration.
Register here!

What if I don’t have a team?

If you don’t have a team now, that’s okay! We’ll help to form teams when the hackathon starts.

Does this cost money?

Nope! Admission is free and includes meals, snacks and a memorable experience (if we do say so ourselves)!

How do I get there?

The hackathon will be held in The Great Northern, Storgatan 53, Skellefteå.
You can also participate virtually.

Is there a map?

Yes, of course.

Intellectual properties

Everything developed at the hackathon will be open source.

Organising committee.

Leif Häggmark, SSiO and Skelleftea Digital Alliance
Karl Andersson, Luleå University of Technology and SenseSmartRegion
Josefin Lundberg, Skellefteå Science City

What if this FAQ didn’t answer my questions?

Please email us at if you’re in any way confused or concerned! We’d love to help you out :)



Sound challenge

• Teachers say that the sound level is very high in classrooms and day care centers.

• The challenge is to measure the sound levels and find out if it could be harmful to staff or children, momentarily or throughout the day.

• Use our sound sensor, connect it to the Arduino, send measurements to the SSiO IoT platform. Extract data from the platform and present measured sound levels compared to damaging levels in an easy-to- understand way.

Monitoring 5G networks

• 5G is the newest technology in the field of Mobile Communication. The main advantage of 5G is that they will have greater bandwidth, higher download speeds, eventually up to 10 gigabits per second (Gbit/s) and lower latency. Monitoring provides a greater understanding of the performance of the network. However, there is a challenge to ensure the accuracy of measurement while monitoring the network performance due to the low latency and higher download speed.

• Currently, under the Arctic 5G project we have a test 5G network in The Great Northern.

• The challenge will be to develop an application to Monitor, analyzing the network performance of a 5G.

Weather use case

• High secure-no third-party IoT devices transactional record-keeping in the decentralized systems

• A call request to IoT to read weather data is considered a transaction. So, maintaining IoT device transaction records in decentralized systems is a problem many developers and researchers are working on. It has recently become popular to do this task with the help of many third-party systems like Google and Amazon. However, some users do not trust these systems, and they said we want a decentralized system entirely open for all users and devices to join and without intermediary systems (no third party).

Problem: Please design a transaction-keeping application for IoT devices that can keep the IoT transactional weather information like (IoT device id, City name, temperature, and timestamp,...) secure and immutable without using centralized parties and Cloud technology.