These robots were built for Shilpa
Gupta, an independent artist based here in Mumbai. The
idea was to have a set of robots follow a line pattern on
the floor and chant out a pre-recorded message.
Artbots trace back their roots to the previously built line
following robot named ‘Basanti’.
The robots have evolved over a period of time, going through
three revisions. The earlier robots were built to follow a
line in groups and were equipped with proximity sensors at
the front and reflectors at the back. This allowed them to
maintain a safe distance amongst themselves while following
the pattern on the floor; back to back. But we later adopted
a simpler option of running just one robot at a time. So the
new version did away with the proximity sensors. A sound IC
and an amplifier were also integrated in the new design.
1: These robots were built around the PIC16F84 microcontroller
and had modulated proximity sensors at the front. The small
geared motors used to drive the robots turned out to be very
2: The motors were replaced with bigger geared motors
ordered from Solarbotics.
The chassis was now built out of foam PVC sheet.
3: The latest robots use PIC18F252 microcontroller and
have an integrated sound IC with an LM358 based audio amplifier.
The PVC sheet was replaced with wood to add to the robot’s
The robots were showcased at Shilpa’s exhibitions in Bodhi,
Berlin (June 2008) and more recently at Bodhi
Space, Mumbai (it’s on display till Oct end; do
catch a glimpse if you can!)
can watch Shilpa's video interview and her work at Bodhi,
heres a video of the robot currently displayed at Bodhi
Space, Mumbai (11 Oct - 31 Oct 2008) :
robot was programmed to have characteristics of the "left-right-left-right"