I know its been done before, but i have connected my exercise bike to
the pc. It allows you to pedal around google maps in street view. All i
used was an old usb controller, magnetic alarm switch, and some software
to convert the controller buttons to the keyboard arrow keys. Which allows
you to manouver around the map.
Every time the pedal passes the magnet a count is increased. When this
count reaches the desired amount the up button is pressed on the
controller which then moves you forward. The Left and right buttons let
you turn and move down a different street.
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