What:
An interface system that
used hall-effect sensors
to detect the movement
of a button without the
need for a mechanical
connection.
Why: Cost benefit over
conventional buttons when
mounting on glass surfaces
due to the high cost of
drilling holes though
thick glass.
How: Use of hall-effect
sensors, “dummy”
buttons, PC interface
and development software
– design built around
the PIC16F877. |