Blog - Sketching with Hardware

Practical Course on Physical Computing

The Alchemy Lab

Published on: August 10, 2016 | Author: Thomas Wimmer | Categories: 2016b, Projects

The Alchemy Lab – Professor Pooly’s Potion Plotting

We tell the story of an old imp who is looking for a mysterious potion. And he needs your help for that! In this small alchemy lab you need to solve puzzles and riddles to finish up a potion and get a hint on where you have to go next in your Scavenger’s Hunt.

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The Alchemy Lab

Published on: August 10, 2016 | Author: Thomas Wimmer | Categories: 2016b, Projects

The Alchemy Lab – Professor Pooly’s Potion Plotting

This years topic for the course was “Scavenger’s hunt” – creating a puzzle/riddle that can also survive outdoors. After being introduced with several sensors and what the Arduino can actually do we quickly decided to include the four elements – water, fire, earth and wind – into our project. Some research and discussions later we agreed on building our own little alchemy lab which also fits perfectly with the four elements.

Elements

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Day 5 – Are we there yet?!

Published on: August 9, 2016 | Author: Huyen Linh Nguyen Vo | Categories: 2016b, Daily Logs

It’s finally half-time! Or more like already in some cases…and although stress filled the air, Friday morning remained rather relaxed and calm, kind of like before a storm. All teams stood ready relatively early to work on their respective projects and to meet their daily to-dos, some with the intention of leaving earlier to enjoy the weekend.

However, as the morning proceeded and the first practical problems, which led to more distinct time pressure, occurred, stress levels increased visibly: Throughout the groups, several teams had to face a few setbacks as their code just would not work the desired way and resulting from that the features they built would not respond. Lunch break today was more of a ‘whenever fits’ situation because many teams just opted to stay and work on their project tasks instead.

Evidently a lot of teams decided they would unfortunately have to come in during the weekend in order to finish things up on time. But that’s another story. For now, let’s recap what happened in the respective teams during this Friday:

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The MysteryBox

Published on: August 9, 2016 | Author: Lukas Rambold | Categories: 2016b, Projects

Zeichnung3

Idea

The MysteryBox is a wooden chest which opens only if you play the correct melody on it. But how are you ever able to play a melody on a ordinary box, you might ask. Well, the MysteryBox has an integrated distance sensor in its lid which detects your hand if you hover over the box. The higher the distance between your hand and the lid the higher the frequency the box emits.  If you moved your hand in the right manner, the box reveals its interior: a lollipop beautifully set into the right light by three LED beneath the presentation plate and one from top.

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Team 8: C-3PObstler

Published on: August 9, 2016 | Author: Ha-Vy Ha | Categories: 2016b, Best Projects

Idea:

On the first day of brainstorming we tried to associate things that we would do outdoors with the challenge. And drinking games that require some skill like flip cup, flunky bad and beer pong came to our minds. We decided on beer pong because we initially thought about doing moving cups, that would rearrange when scoring. But then we decided to omit the teamplay aspect of the game and change it to a one player game. After gathering some ideas C-3PObstler was born. Or the idea of him at least.

A robot butler that would pour you a drink when you hit the cup.

1.Building a peristaltic pump

How does it work?

A peristaltic pump is a mechanical pump that can move fluids, by applying pressure onto the pump and basically squeezing it. The fluid is in a flexible tube inside a circular pump casing. A rotor is  attached to (in our case) 2 round bearings, which squeeze the tube, while turning with the rotor, which causes the fluid to move through the tube. And when the pressure point is released (the tube is open again), fluid flow is induced to the pump. (https://en.wikipedia.org/wiki/Peristaltic_pump)

Screen Shot 2016-08-09 at 14.34.33

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Monday – Day 6

Published on: August 9, 2016 | Author: Katrin Schauer | Categories: 2016b, Daily Logs

The last full day of work began actually really quiet and concentrated. At his point you could see at every table the projects grow and sometimes it was optically even finished. At a few tables you could detect a progress over the weekend so obviously some guys had been here during the last two days. Every team – if worked on the weekend or not – had a plan what to do and to finish on the last day before presentation day. Nearly everybody had the ambitious goal to be finished in the evening in order to have the last four hours of the next day for testing, last bug fixing and painting a poster. So the atmosphere was actually not panic at all rather concentrate and efficient.

Team 1: Floribus Rabidus Electronics

The aim was to finish the project and besides a bug with the shake-switch the main functionalities are implemented and already working. But until this point the cause for the bug could not be found. But nevertheless they seemed quite confident to get everything finished in time.

01

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Team 5 – Ein Münchner zwischen Himmel und Erde (A „Munich’er“ between Heaven and Earth)

Published on: August 9, 2016 | Author: Barbara Maria Elisabeth Schindler | Categories: 2016b, Projects

“Himmel und Hölle” (in English: hopscotch) as a digital version, that was the concept which we planned to realize as a prototype within the framework of the topic scavenger hunt.

So in our project, all fields are not just only painted on the ground, but consists of boards made of wood. Four LEDs installed underside each of these boards show at the start of the three, getting more and more difficult levels the choreographies, which all have to be hopped so that the LEDs illustrates the direction to next object at the end. After showing the choreography, the LEDs signal with a countdown when it can be jumped and are also used for making it clear if the user has completed the level or done an error. These cases are determined when the aluminium foils on the underground and the steel wools also underside the boards get in contact what happens when the sponges of the boards are compressed by standing on the board. And the aluminium foils have another important advantage: they reflect the light of the LEDs, which the milky foils, stuck on the boards, break. So we required only a little amount of LEDs for lighting up all holes.

completePrototype UndersideBoards CountdownLED

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Final Day

Published on: August 9, 2016 | Author: Manuel Bonk | Categories: 2016b, Daily Logs, Final Presentations

The final day had come. Eight days of breaking things, tinkering, and soldering have passed. Even though it was the last day, there was still some work left. The deadline was at 1 pm when the first external guests (mostly professors and PhD students) arrived. Every team had to present their work and in the end the students and guests voted the best project. Even though it was required that the projects had to work outdoor all demos (except for team 7) were held indoor due to the weather outside.

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Team 2 – Priapos

Published on: August 8, 2016 | Author: Katharina Hauser | Categories: 2016b

Priapos, a project built and developed by Michèle Heinemann and Katharina Hauser

Priapos_Poster

Priapos, the god of fertility has come to earth. He put his soul into a scarecrow to test those who dare to be tested. Three challenges shall be mastered by a chosen one who will be rewarded hence all these challenges have been completed successfully…

The hero has to prove his qualities in three different disciplines: wisdom, agility, and logic.

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Detailed Description of the Project “Ein Münchner zwischen Himmel und Erde” (A „Munich’er“ between Heaven and Earth)

Published on: August 8, 2016 | Author: Barbara Maria Elisabeth Schindler | Categories: 2016b

Day 1 – Concept Phase

Scavenger hunt – that was the topic this time to which we should consider an object that could be used outdoor and includes a physical puzzle, which should be solved by the user to get a hint to the next object.

So as we were going outside for brainstorming, Katrin and I thought of games, which we were playing as children at the schoolyard. So french elastic came into our mind, but we saw the biggest problem in the two motors at both ends, which had to be strong enough for swinging the ropes. Also we had the idea of combining skipping as an interaction with putting up an umbrella, which should protect something like a candle from the wind or the rain.

But what appealed to us at most was the game called HOPSCOTCH (in German: Himmel und Hölle): there you have to hop into one numbered field after the other according to rules from which numerous versions exist. For our technical version, we decided on a base area on which all seven rectangular board and one semi circular one stand.

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