Use your Raspberry Pi as your local NodeJS Webserver

June 12th, 2016 1 comment

webtool_banner

A couple of months ago, I tinkered around with NodeJS on my local machine. After a while I got kinda addicted to the NodeJS Plattform for webservice (SOA) applications as well as Desktop Apps (Electron/NodeWebkit). Hence more complicated NodeJS experiments will start, I decided to set-up my own webserver environment for my (local) network with a Raspberry Pi 2 B. My tools of choice are:

  • Raspian Jessie Lite from 2016-05-27
  • GIT v2.1.4: Version control for source code
  • NodeJS v6.2.0: for REST APIs and Websocket applications
  • Nginx Webserver: Deliver static files, Reverse Proxy for NodeJS, and Load Balancing
  • MySQL Server and Client: for Relational Databases
  • CouchDB v1.6.1: as my NoSQL Database with strong JavaScript tools
  • PM2: NodeJS Process Manager for starting and stoping NodeJS Apps
  • Nodeadmin: Admin Tool for MySQL (like PHPmyAdmin)

Let's get started:

 

Download Raspian Jessie Lite from the foundation website and write the image on your class 10 SD Card. For more information please read this tutorial (in German).

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Gastvorlesung und Workshop Human Plant Interfaces

May 13th, 2016 No comments

Plant Colour Patterns

Im Anfang Mai 2015 lud mich Myriel Milicevic für eine Gastvorlesung und anschließendem Workshop für Ihren Kurs Interfacing with Nature an der Hochschule Potsdam ein. Mein Themengebiet für diesen Tag waren die Artistic Human Plant Interfaces/Elektrobotanik. In der 90-120min Einführung bekamen die Studenten aus den Bereichen Produkt Design, Interface Design und Kommunikationsdesign einen ersten Eindruck, welche Überschneidungen zwischen Menschen und Pflanzen, sowie zwischen Pflanzen und Technologie auftauchen.

 

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Guestlecture and Workshop Human Plant Interfaces

May 12th, 2016 No comments

Plant Colour Patterns

On May 2015, Myriel Milicevic invited me for a Guestlecture & Workshop on Artistic Human Plant Interfaces/Elektrobotanik for her Interfacing with Nature class at University of Applied Science Potsdam. The starting 90-120min lecture provided the students (in that case communication, product, and interface designer) an introduction about interfaces with plants. This includes viusal approaches as well as bio sensing projects.

 

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Workshop Format: Create a Game (Art) Installation

May 7th, 2016 No comments

During mid of 2013 until the beginning of 2014, Juliane Springsguth and me had the chance to develop a new game design hacking workshop format for teenagers (Mostly 8th graders around 13-15 years old) in cooperation with "Berufsorientierte Schulprojektwochen (BOP)" organized by the Media Education Institution WeTeK Berlin gGmbH.

Our objective was to generate a tangible and audiovisual output in shape of a Game (Art) installation during the workshop. Furthermore, our intention regarding those young participants was to empower them to express their ideas in a (media) technology driven environment. Officially the objective was that they get a first impression how a job as digital media worker could look like.

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My Biosensing with Plants chapter is published in the book: The Green Thread Dialogues with the Vegetal World

December 10th, 2015 No comments

Some findings of my master thesis about biosensing are published in the new book:

The Green Thread: Dialogues with the Vegetal World

Book about Plants

Edited by Patrícia Vieira; Monica Gagliano and John Ryan

Together with Christa Sommerer and Laurent Mignonneau, we wrote the chapter 13 The Art of Human to Plant Interaction. If you want to see videos of these featured Human Plant Interaction, please check: Biosensing for Human Computer Interactions

Please feel free to post your Feedback about our chapter!

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Create speaker on the body of a leaf

November 27th, 2015 No comments

For almost more than a year I wanted to write a tutorial about how to create a speaker on a leaf. Unfortunately, I found no time to write one. I think it is now time to show you the video as an example and provide you the links for built your own leaf speaker

For several years, I am really excited about Hannah Perner-Wilson aka Plusea's textile circuits. Fortunately, I could join her workshop during the Schmiede 2013 and applied her textile speaker to a lead of a plant. First experiment worked well with conductive thread, which kinda harmed the leaf structure. Therefore, we experimented with conductive ink, too. The result was much quiter noise.

Information and tutorials for building your own leaf speaker:
highlowtech.org/?p=1372
kobakant.at/DIY/?p=2936
kobakant.at/DIY/?p=3794
plusea.at/?p=4161
instructables.com/id/Embroidered-Fabric-Speaker/?ALLSTEPS

Happy tinkering!

My most important Twitter Messages #18

January 22nd, 2015 No comments

Twitter von der hess

Long time ago I started posting my last summary of my Twitter messages. It is always a nice way to reexperience the developments of a certain time period. For this reason my most important Twitter messages from Ocotber 2014 until January 2015. Read more...

Perception of Nature: “Season Patterns”

November 10th, 2014 1 comment

The human perception responds positively on natural environments with many plants. Especially, during the seasons spring and autumn people are excited by the shape and colours of plants. The photo series “Season Patterns” is an artistic approach of capturing and documenting these feelings of beauty caused by nature [Schwepenhäuser2007, pages 70-71].

Previous landscape painters already tried to capture the broad range of natural elegance in their artworks. Their approaches were very often accurate in every detail of the landscape, but still the painters were not satisfied with their visual representations of the landscapes. For this reason, the photo series “Season Patterns” uses a visual abstract expression for representing the prettiness of nature and plants.

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Human Plant Interfaces: Conclusion and Findings

October 25th, 2014 No comments

horticulture

The theoretical and practical part of this thesis proposed techniques and applications for Human Plant Interfaces. The results of the qualitative analysis and the practical work exposed evidences for the relevance of the topic Human Plant Interaction.

The theoretical analysis pointed out that plants are a valid material for visualization applications. The applied techniques are heavily depending on the data characteristics. For long term data visualization the usage of plant displays with their changing appearance ability through plants growth is an appropriate tool. In contrast to this, visualizing real-time data requires a different approach. Simple data values or the visualizations of state changes in an interactive system can be performed through kinetic gestures of a plant (e.g. movement of branches). More complex data can be visualized with the help of projection mapping techniques. The physical size of these visualizations varied from small (table-size) to huge.

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Plants as a barometer: “Charisma Garden”

October 20th, 2014 3 comments

charisma_garden_banner

The last introduced projects were characterized by its approach of attaching data to a plant. In this project “Charisma Garden” (2013 - 2014), the data will be directly integrated in the health and growth process of a plant. In comparison to the “Travelling Plants” and “Dead Tree Project”, the data is not added to the plant then rather the representation of the data is the plant by itself in this project. In relation to the chapter “3.1. Visualizing techniques with plants” on page 44, the “Charisma Garden” project can be assigned to the category plant displays and takes over the role as a data sculpture. This dynamic (visually changing) data sculpture presents the social activity of a Facebook user.

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