I recently had to make a design project for a class at school where the only requirement was the incorporation of a DE2 board. My partner and I originally wanted to construct a “frameless” laser harp (the Stephen Hobley variety), but due to budget, time, and logistical constraints, we opted for the slightly less ambitious route. The final product only utilized 2 laser pointers, some basic building materials, and the required board, and it turned out great.

Here is a little video of the harp in action with a quick explanation http://www.eecg.toronto.edu/~janders/241…