News

Aalto University students’ hedgehog robot wins first place in robot competition

Valentin Rainio and Sakari Harjunpää, students at the Aalto University School of Electrical Engineering, built the robot as part of the popular Electric Workshop course.
Sakari Harjunpää ja Valentin Rainio Sähköpajalla
Sakari Harjunpää (left) and Valentin Rainio with an early version of Robosiili at the Electrical Engineering Workshop. Photo: Mikko Raskinen / Aalto University

Teams taking part in the Amazing Robots Competition at the Teknologia 22 fair were given the task of building a robot that does something interesting. There are not many rules in the competition, lest they inhibit the creativity and technical skills of the contestants. The competition is organised by TIES, an organisation dedicated to information technology and electronics, in cooperation with Mikrobitti magazine and The Finnish Fair Corporation.

Aalto University School of Electrical Engineering students Valentin Rainio and Sakari Harjunpää finished first in the competition with their Robosiili hedgehog robot, winning € 10,000 in prize money.

Valentin, who studies bioinformation technology, and Sakari, a student in the Advanced Energy Solutions master's programme, first met at the Electric Workshop course where the development work began. The popular course is a practical one where students design and build a functioning electrical device. The course requires no prior experience of electrical devices or coding, but as they both had experience in the subject, they wanted to take on a more challenging project. Electronics and programming had been hobbies for Valentin since he was a schoolboy. Meanwhile, as a master's student Sakari was skilled at 3D modelling techniques for 3D printing, and he had also become skilled in electronics.

‘From an early age I have always been interested in everything that works with electricity, and I was in an electronics club already before I could read’, Sakari says.

‘My father had often spoken of the challenges and complications of building robots that walk, which is why I came up with the idea of modelling a four-legged creature. However, as quite a few walking robots of different types had already been developed, I thought about the funny way that hedgehogs curl up into a ball and roll (at least in animations and games). Sakari agreed, and that is why we started to design the Robosiili’, Valentin explains.

This is what the ready Robosiili looks like!

The final appearance of the hedgehog changed considerably in the process.

Robosiili
Robosiili
Robosiili
Robosiili

There were four students on the course, but Sakari and Valentin continued working on Robosiili for the competition this spring.

What are the future plans for these technology students? Valentin only started his studies in the autumn, and his plans are still undecided, although working with robots has felt interesting.

‘My own dream job would probably involve research and development. I really like to create and develop new things and to create prototypes. Robots certainly are interesting, but electric cars, for example, have also been close to my heart’, Sakari says.

Finishing second in the competition was another Aalto University team with their FireCorp robot, and in third place was a team of students from the University of Jyväskylä with their SmileBot.

Heartfelt congratulations to all winners!

Sähköpajan loppunäytös 2022

Sähköpajan loppunäytös järjestetään 24.5.2022 kello 13 alkaen. Tervetuloa tutustumaan opiskelijoiden hauskoihin projektitöihin!

Opiskelijoita Sähköpajakurssin loppunäytöksessä

Sähköpajan loppunäytös 2022

Tervetuloa Sähköpajakurssin loppunäytökseen, missä opiskelijat esittelevät suunnittelemiaan ja rakentamiaan laitteita!

Tapahtumat
  • Updated:
  • Published:
Share
URL copied!

Read more news

Group of students in a classroom, standing before a disaster response slide, with Finnish and Indian flags on table
Studies Published:

Aalto University partners with Indian universities to advance digital disaster response

Students and early-career researchers across engineering, data science, and environmental fields joined Aalto University’s intensive course with visiting professors from India to learn how modern digital systems can improve disaster readiness and response
MyCourses activity
Studies Published:

MyCourses maintenance break Mon 15 June, 2026 at 9.00-17.00

MyCourses maintenance break on 15 June 2026 starting at 9.00. During this break, the service is not in use.
Collage of people collaborating at tables and watching a presentation, on a bright yellow background
Studies Published:

Facilitation — the research career skill that travels with you?

A new Aalto multi-disciplinary doctoral course From Expert to Enabler: Facilitation Skills for Researchers teaches facilitation methods straight from industry and research - and ready for use.
Two students test a small circuit board using oscilloscopes and grey lab instruments on a bench
Studies Published:

From theory to practice: students enhance an accessible MRI scanner

Master’s students Teemu Rauha and Elias Viitanen designed new filters for an accessible magnetic resonance imaging (MRI) scanner, aiming to reduce interference and improve image quality. The technology, developed within a research project, could one day accelerate diagnoses of conditions such as stroke.