Demo Hour

XXVI.1 January - February 2019
Page: 8
Digital Citation

Seungwoo Je, Hyelip Lee, Myung Kim, Minkyeong Lee, Yoonji Kim, Youngkyung Choi, Andrea Bianchi, Brian Chiang, Ai-Hsuan Chou, Dominik Fink, Jannick Lenz, Paul Raschke, Mario Rieker

back to top  1. Wind-Blaster

In this issue's Demo Hour we bring technology and nature closer together. Fog, rain, wind—each of these projects have their own way of integrating "the weather." These designs use weather elements as an interaction medium (Receipt of Memory), as sensory input (sWeather and RainSeason), and even as an actuator (Wind-Blaster).
— Anne Spaa, Demo Hour Curator

Ungrounded haptic force feedback is a key element to achieving an immersive experience in virtual reality (VR). Mobility is a crucial part of the experience, especially for applications such as first-person VR games. Wind-Blaster is a novel wearable interface that generates force feedback by spinning two propellers mounted on a person's wrist. The device is interfaced with a game running in Unity. By manipulating the direction, duration, and intensity of the feedback on the wrist, it is capable of rendering different haptic stimuli mapped to four weapons.

Je, S., Lee, H., Kim, M.J., and Bianchi, A. Wind-blaster: A wearable propeller-based prototype that provides ungrounded force-feedback. Proc. of ACM SIGGRAPH 2018 Emerging Technologies. ACM, New York, 2018, Article 23; (Project Overview) (Interview at SIGGRAPH 2018 E-Tech)

Seungwoo Je, Hyelip Lee, Myung Jin Kim, Minkyeong Lee, Yoonji Kim, Youngkyung Choi, and Andrea Bianchi, MAKinteract Lab

[email protected]

ins01.gif Wind-Blaster uses wrist-mounted propellers to create force feedback for VR immersion.
ins02.gif Early hardware prototype setup.

back to top  2. The Receipt of Memory

The Receipt of Memory is a device that catches memories. By drawing a memory on a foggy screen, you allow the device to read your mind. It then prints out a receipt of your memory, enabling you to retrieve memories that would otherwise be forgotten.

The design of the device is inspired by inadvertent distraction during a conversation. Even though you clearly hear the words and sentences, in the next moment the memory of what was said is gone.

Brian Yu-Jen Chiang, Shih Chien University
[email protected]

ins03.gif A memory drawn on the foggy glass is transformed into a receipt.
ins04.gif The receipt of a memory.
ins05.gif Experiencing the Receipt of Memory.

back to top  3. Rain Season

Rain Season interacts with raindrops. Consisting of two digital devices and one analog device, this work puts rainy days in a new perspective. The concept behind it is to reveal the mysteries of rain.

Raindrops fall on flowers and roof tiles, and into puddles. Respectively, this reflects the movements raindrops can cause, the sounds they can create, and the appearance they can have. As raindrops drip, what do they dream of and where do they feel like going?

Ai-Hsuan Chou, Shih-Chien University
[email protected]

ins06.gif Rain Season's flower element reacts to the movement of falling raindrops.
ins07.gif Rain Season's puddle element reflects raindrops back into the world.
ins08.gif Rain Season's roof-tile element emits sounds triggered by falling raindrops.

back to top  4. sWeather

sWeather is a do-it-yourself weather station that can be built and configured by anyone. The base station contains humidity, air pressure, and temperature sensors. It is expandable with many other sensors, and therefore can be adapted to the user's needs. Using the sWeather website, users can access their data, compare it with other official weather services, make weather forecasts, and create a comprehensive network of weather data together with other users. The website is fully responsive, allowing users to access their personal weather data on their mobile phones while on the move.

sWeather is a do-it-yourself weather station that can be built and configured by anyone.

Dominik Fink, Jannick Lenz, Paul Raschke, and Mario Rieker
[email protected]

ins09.gif sWeather station housing.
ins10.gif The mobile Web app for sWeather.

back to top 

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