Review
(^190) The Official Raspberry Pi Projects Book raspberrypi.org/magpi
An easy-
to-build robot
arm kit that's
designed to
get children
learning
about
technology,
engineering,
and
programming
Mime Industries
Maker
Says
MEARM PI
he original MeArm was
reviewed back in issue 33
of The MagPi magazine.
While we loved the concept of an
affordable, open-source robot
arm, we did note that a missing
piece of the puzzle was the need
for users find their own way to
drive the servos from a Raspberry
Pi. The new MeArm Pi solves the
problem by including a HAT with
twin on-board joysticks, so now
you have everything you need in
one kit.
Not only that, but the arm
itself has been completely
redesigned, eliminating two-
thirds of the screws and using
new fixings to make it easier
to build. It certainly is a lot of
fun to put together, like a cool
motorised Meccano set. Step-by-
step illustrated instructions are
supplied online – two versions,
for a standard-size Pi or a Pi Zero.
Most of the acrylic pieces simply
slot together, secured by a few
rubber bands, while three lengths
of screws are used for the moving
joints. A hex key is supplied for
this purpose, but you need to
avoid overtightening the screws
so that the joints can move freely.
The design is well thought out,
with strategically placed holes for
the servo cables to pass through
to keep them tidy. We found the
trickiest part was sliding the arm
This fun robot arm will grab the interest of children and adults alike
T
MEARM PI
OWI
ROBOTIC
ARM EDGE
This robust
robot arm
comes with a
remote control,
but can also
be controlled
from a Pi via
any motor
driver board.
magpi.cc/KTUqXa
Related
£47 / $50
Below The joystick controls
are on a HAT that slots easily
onto the Raspberry Pi