Recently, I got into developing programs for the TI-NSpire calculators. One program I made was a timetable application. I spent a long time writing the console library to output text (since the calculator’s printf function prints to the serial output rather than a console on the screen). But after that, it was easy writing the rest of the program.
Licensed under the GPLv3 License.
So, enjoy the application. Download Source Code and Binary.
tangrs 