This paper presents a simple, low cost robotic system built from
off-the-shelf sensors and components, designed to perform a series
of cooperative tasks in general and tightly coupled tasks in
particular. A task is considered to be tightly coupled when its goal
can only be achieved through close interaction of a minimum number of
robots (e.g. carrying a box otherwise impossible to a single robot).
The several subsystems are briefly described and some experimental
results are presented, showing that it is possible to overcome the
various restrictions of these platforms and still implement relatively
complex cooperative behaviors.
