An ergonomic pointing device receives user commands for controlling an
electronic device. Typically three switches are provided underneath a
navigation wheel. The two side switches are typically located towards the
back right and left corners of the navigation wheel body, whereas the
select/enter dome switch is typically located in an area that is at or
substantially near the front midsection of the wheel body. A pivot pin is
typically provided in a back center area of the navigation wheel body.
The navigation wheel is arranged to slightly rock in response to a user's
downwards force. The left and right switches operate when the wheel rocks
left and right about the pivot pin. The select/enter switch operates when
the wheel rocks frontward and backwards about the pivot pin. An optional
plastic cap can be used to secure the navigation wheel assembly to a base
such as a printed circuit board.