video://www.youtube.com/watch?v=Alf3QPirSG4
I’d probably stick with a traditional hourglass or my nike watch but this LED project is cool.
The LEDs are arranged in a circular conical fashion, to mimic the glass parts of a traditional hourglass, giving a 3-Dimensional appearance to the electronic hourglass. The system is equipped with a Z-axis accelerometer that detects the orientation