Get your secret message binary-encoded and engraved on a ring out of gold or silver. Thanks to factory automatization, no human ever except you(if you don't tell anyone) will know what your message is by just looking at it. But by wtiting down all the ones and zeros and rotating the resulting bitstream until it makes sense, you can recover the message.

Create non-fungible tokens on the cardano blockchain. Pick a media file, send shown amount of ADA to the service and get your File as an NFT along some ADA returns back.

Teaching Computational thinking with this educational game, where a robot needs instructions to get to the next level.

A dome-shaped split-keyboard with Bluetooth Low Energy. Completely procedural generated 3D-models and circuit boards from code. Uses Constructive Solid Geometry, NURBS surfaces, linear algebra and other math tricks.

The Bogus Exchange is a casual game. Paper trade some random walk with friends. A whole week in 5min. Just create a new Game, send the game-link to your friends and find out, who is the best stock trader. Or the most luckiest one.

Measures seven properties of the air we breathe. Warns you when air is not fresh. Completely solar-powered with LiFePO4 battery instead of a LiPo. Wakes up every 5 minutes, takes measurements and pushes it to a timeseries database. A grafana dashboard is used to view the data. Measures:

• CO
• CH4, NOx
• P2.5, P10 particular matter
• relative humidity and temperature
• Volatile organic compounds

Prototype for a lamp, which is controllable via bluetooth and an android-app. The lamp itself hangs on four wires, which lengths are controllable. Custom PCB to control the battery, motors,encoders, bluetooth and some high power LED drivers.

Flappybird-inspired casual game. Simple one button control to change direction. Don't let the anglerfish die and find the way out of the cave.

An endless-scrolling casual game. Try to get the laserbeam as far as you can. Bad graphics and even worse code, but this was in 2015 and i learned a lot about game development, 2d physics engines and OOP in general.