We're a small craftware company located in Grahamstown, South Africa.
Our current projects focus on a combination of Internet of Things and computer control of hobbyist CNC machines / 3D printers.
We also have an interest in processing data collected from scientific sensors, security cameras, the visualization of the data, and the development of special-purpose Windows front-end applications.
Previously we've produced a number of games and activities to support an academic career and an interest in teaching Computational Thinking. There are maze and logic games, a programmable robot, a Sudoku solver, software to teach algorithms like the binary search, software to teach encryption.
We've done a few image processing projects. The one we really like is our multiple choice sheet marker. It analyzes MCQ sheets which have been scanned on a photocopier or scanner, and marks them, producing an Excel spreadsheet of student performance, and an analysis of how students performed on each of the questions.
Free StuffAs you might expect, what you find here is "as-is".
ContentsOur Free C# Textbook Our Free Python 3 Textbook Resources for Arduino, ESP32, etc. Our Free Sudoku Solver Read what we did at BingBee
You can generate puzzles (and print them if paper is your thing), or start with a blank board and enter your puzzle from the newspaper. You can turn on helpful pencil marks that show the live candidates for each cell, and make use of auto-fill for "obvious" cells. You can even set a checkpoint and try a number in a cell, then later backtrack.
To get started, download the zip file, unzip it, and run the solver program. Requires Windows and a recent version of .Net.
An attendee took these wonderful notes while I was presenting a talk. I was later alerted that they were online. I don't have their name for credit, unfortunately!
Read the paper that went with the presentation.