That’s how I made it…

This is the Lilypad board. The alligator clips are connected to a temperature sensor and a three color LED, the red adaptor links the board via USB to the computer to upload the code [Get it here]. Coding is done in C++ in a processing-like environment.
You only need to specify what should happen in the setup and in the loop phase, the arduino magic takes care of the rest. This let’s you start really fast without knowing anything about hardware programming!

The LED (having three inputs for red, blue and green) glows blue if it’s cold…

… like in this box of frozen peas. Testing hardware is much more fun than testing software!

When it’s hot, the LED turns red. In between there’s a gradient from blue to cyan and from yellow to deep red.

The sewn on board (middle), sensor (left) and LED (right). At the bottom of the board there’s a hole to hide the ugly battery on the back of the shirt. On the top of the picture you can see the layout of the circuit. It’s important to have a design where the cables (or, for Lilypad, the silver threads) don’t cross too often, because it makes sewing easier – you have to isolate each crossing.

The first few stitches with the silver thread, leading away from the positive pole. This was surprisingly easy, because the thread is really soft and not at all like wire.

The first circuit is finished, connecting the board with the sensor. Using alligator clips to check if it’s still working… and it is! The LED shines yellow.

The reverse side of my shirt after sewing everything together. I used band-aids to isolate the threads. Note the long stitches – those are connections running mainly on the back side and covered with tiny silver pearls when coming to the front. Having all stitches on the front side would have made it impossible to make the shirt look like three flowers growing next to each other, it would have just looked like a circuit. I also added some petals (using normal thread in purple and turquoise) to make it look prettier.

And yes, I really do wear it! Only feels a little bit nerdy… and there’s a switch on the board to turn it off.

The problem is, that Converter provides no way to determine which drawings have been added. So I tried the following, like I would have done in Java – subclass the Converter and add the needed methods.

But I can’t override the AddDrawing-Method, because it’s not marked as virtual in the super class (and I can’t change the super class). Now what?

I chose to factor out the conv.AddDrawing(drw) part of the original method in a new method “AddToConverter”, create a TestService class and override the new method there similar to how I planned to do in the TestConverter. Leads to more methods that need to have less restricted access than I’d like to… bäh.

In all other classes I still think that the only use of regions is to find which parts of a class should be extracted into a new class

Luckily, there’s ReSharper, a great tool for visual studio, that let’s me use all the shortcuts I know from IntelliJ IDEA.

But as all the rest is so new and exciting, be prepared for a lot of beginner’s posts about C#, Team Foundation Server, working off-site and alike.

rlwrap is a wrapper that uses the GNU readline library to allow the editing of keyboard input for any other command. Input history is kept between invocations, separately for each command; history completion and search work as in bash and completion word lists can be specified on the command line.
rlwrap compiles and runs on most Unix(-like) systems, including cygwin.

Get it here

That makes a total of “Generic Attribute Registration Protocol Virtual Local Area Network Registration Protocol”. Wow.

svn switch ^/branches/new

or merging the trunk

svn merge ^/trunk

Before that I always did svn info, copied the path, etc. etc.

This snippet in Firefox

only prints exactly one page (that means it even stops in the middle of a line when the page is full).

However, using

instead of

solved the problem.

1. resurrect your branch by copying the revision you want to roll back (here: 28120) to a new branch:
svn copy http://svn.domain.com/branches/new_feature@28120 http://svn.domain.com/branches/new_feature -m “restore temporarily”

2. in your local copy, undo the specific change (c -28120 is the same as -r 28120:28119):
svn merge -c -28120 http://svn.domain.com/branches/new_feature

3. the usual: build, test, commit.

Unfortunately, you have to do this in two steps and maybe it messes up your merge info a bit, but we didn’t find a better solution. Simply rolling back from the deleted branch didn’t work.

All talks were awesome (and I totally want an arduino for Christmas), but the one that kept me researching and having new ideas was the one of Moritz Stefaner about visualizing information. He has some really inspiring websites (here and here). I especially liked his contribution to the book “Dynamic Taxonomies and Faceted Search” – it’s about search, visualization and it even has formulas. What more could one want?

The organizor of the conference promised to upload videos of the talks, I’ll post an update once they are available (most are in german, though)