GPS Essentials

posted Jan 27, 2011, 6:18 AM by Michael Schollmeyer

This is the most active project, currently. Here is some more info.

Sudoku for Windows Mobile

posted Jan 10, 2011, 3:39 PM by Michael Schollmeyer

Sudoku is a number puzzle without numbers. This free download is an implementation for Windows Mobile 5 smartphones. Now you can take your favorite puzzle with you at any time!

Some unique features:

  • Comes with hundreds of hard to solve puzzles.
  • Download additional puzzles from anywhere.
  • Create your own puzzles.
  • Solves puzzles.
  • Send grids as SMS.
  • Measures time to solve puzzle.

Planned features:

  • Rating.
  • Store finished puzzles.

The following screenshot shows the startup screen of the application:

The following screenshot shows a new grid.

The following screenshot shows a grid with some numbers entered.

Puzzle Files

Sudoku for Windows Mobile ships with a number of puzzles in the files top95.txt ans contest.txt. The setup stores these files in your documents folder on the device. You can open the file using Menu/New and then select Menu/Open File.

The puzzles come from []. You can go there and download additional puzzles.

You can create your own puzzles files using any text editor. Any lines of text that are either empty or start with a hash character # will be ignored. Any other line contains a puzzle. The contents of every cell are encoded from left to right, line by line. Every character is a cell and contains either a digit or a dot if the cell is empty.

The following is a sample line:


The application does not check if the puzzle is valid. You are responsible for defining valid data.

You find may resources for puzzle generators or generated puzzles on the net.


This software is released under the GNU Public License.


You need the .NET Compact Framework 2.0 installed on the device.


Download the CAB file, copy it to your device and run it.

The source code is also available.


posted Jan 10, 2011, 3:37 PM by Michael Schollmeyer   [ updated Feb 6, 2012, 12:37 AM ]

SC-Mobil is a mobile application to capture and process traffic offences on mobile devices that I worked on in the past.

We also did a case study with Microsoft for this project. Lest we forget I am hosting the case study here.


posted Jan 10, 2011, 3:33 PM by Michael Schollmeyer

Floating charts for TeX. FChart is a set of macros for TeX that I wrote many years back. You can download the documentation below (in german, but you'll get the idea)


This software is released under the GNU Public License.


Download the ZIP file, copy it to your local machine and unzip it.

Lisbon Embedded Database

posted Jan 10, 2011, 3:31 PM by Michael Schollmeyer

Lisbon is an XML embedded database for Windows CE and Windows Mobile devices.
You can find all the information about my embedded database project on Sourceforge.

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