Many touchscreen interfaces support one-way physical interaction. Wouldn’t it be nice if you could feel virtual objects as you work on a touchscreen device? The UMass-Amherst Mechatronics Lab has come up with a haptic mouse for large touchscreens that adds physical feedback to touchscreens.
This handheld robot rests on a large touchscreen surface and lets users feel the boundaries of virtual objects push back on their hand thanks a single wheel in contact with the touchscreen surface. This video shows how the device works.