  The ARS 548 RDI Radar is a premium model of the fifth generation of 77 GHz
long range radar sensors with new RF antenna arrays, which offer digital beam
forming. This radar measures independently the distance, speed and angle of
objects without any reflectors in one measurement cycle based on Pulse
Compression with New Frequency Modulation. Unfortunately, to the best of our
knowledge, there are no open source drivers available for Linux systems to
enable users to analyze the data acquired by the sensor. In this paper, we
present a driver that can interpret the data from the ARS 548 RDI sensor and
make it available over the Robot Operating System versions 1 and 2 (ROS and
ROS2). Thus, these data can be stored, represented, and analyzed using the
powerful tools offered by ROS. Besides, our driver offers advanced object
features provided by the sensor, such as relative estimated velocity and
acceleration of each object, its orientation and angular velocity. We focus on
the configuration of the sensor and the use of our driver including its
filtering and representation tools. Besides, we offer a video tutorial to help
in its configuration process. Finally, a dataset acquired with this sensor and
an Ouster OS1-32 LiDAR sensor, to have baseline measurements, is available, so
that the user can check the correctness of our driver.
