Find the full project at https://makeymakey.com/pages/how-to and https://www.instructables.com/makeymakey/ Hook up Makey Makey key presses as follows: Space- 1/4 cup A- 1/2 cup Down- 3/4 cup Right- 1 cup
Thanks to Maker McCoy for creating a water bottle fraction generator. That is the original inspiration for this project!