We
were
inspired
to
build
an
ultrasonic
security
system
for
our
final
project
by
our
housing
situation
this
summer.
Security
is
an
important
part
of
home,
especially
if
we
are
going
to
share
a
house
with
prior
strangers
without
a
lock
on
our
room
door.
Yes,
that
is
the
situation
we
are
walking
into
in
order
to
drive
down
the
cost
of
living
in
NYC.
And
we
anticipate
that
many
college
students
could
face
a
similar
problem.
What
is
not
to
love
about
a
device
that
looks
like
WALL-‐E
and
scans
around
for
possible
intruders