to the DSP, which also does analog-to-digital signal
WALL-E can explore his environment using his DSP, IR
obstacle sensors, and a pre-assigned road map, according
to company technicians. This road map actually consists of
three individual routes that WALL-E can follow.
Users activate ExploreMode by selecting the green
triangle button on top of WALL-E’s yellow body. Users can
also select ExploreMode via an oval button on the remote
control that looks like an asterisk with WALL-E moving in
front of it. WALL-E does not scale stairs or navigate steep
slopes. Users should avoid these when selecting an area for
WALL-E to roam.
DanceMode and Playing MP3s
WALL-E with remote control.
that audio input. WALL-E’s TalkBack feature is on by
default. To turn it off, select the TalkBack on/off button
which will beep twice as the feature is turned off. The
button’s graphic looks like sound coming out of a speaker.
Sound sensors and the TalkBack feature resume when the
user selects the button again. The user will hear a single
beep for “on.” WALL-E uses his 16-bit DSP to play any
number of customized sounds.
If you are to one side of WALL-E, you can get his
attention and get him to turn and face you by clapping
loudly at him twice. When he turns his head, clap again
twice or three times so he can hear you. WALL-E should
then turn to face you.
In order to ensure that WALL-E can hear you, recognize
your speech, and give the appropriate response, you do the
following: Stand one foot in front of WALL-E while he is
in TalkBack mode. Speak loudly with long sentences so
WALL-E receives plenty of input to make a decision about
the sounds he hears. If he can hear your voice, you will see
an indicator light flashing on his chest.
WALL-E will respond by saying his name as in the movie
or with sounds, lights, and movement. His response will be
different based on the volume of your voice. Loud sounds
evoke a frightened response (a combination of
responses that make him appear frightened).
WALL-E’s unique sound capabilities are the
result of the DSP which provides dual channel
voice mix output.
WALL-E designers have connected his
many sensors and motors via I/O control pins
12 SERVO 04.2009
WALL-E has a square, yellow DanceMode button on
his body and an oval button with a picture of two notes
and a staff on the remote control. Through a small, active,
pre-programmed sequence of steps and synchronization,
WALL-E synchronizes his dance moves with the rhythm of
the beat. WALL-E comes with a compartment for MP3
players, which users plug into WALL-E so he can play back
music from the device and put on a light show.
The Ultimate Programmable
The white, black, and yellow Ultimate Programmable
Remote Control console is a wireless infrared device that
WALL-E operators can use to program and navigate the
robot from up to 25 feet away.
The remote will send action commands instantly, or
program and store action sequences for WALL-E, with up to
1,000 different combinations of actions possible. “WALL-E
will record up to 64 programmed actions in a sequence
sent from the remote control. With the press of a single
button, WALL-E will play out the actions in the sequence,”
WALL-E has already become a popular robot for
experimenters. Check out the posted modifications and
ways to build your own WALL-E robot in the Resources
PIXAR animation, films
Search for the Ultimate WALL-E
WALL-E movie overview
Links to build your own WALL-E