Duckietown DB21

Duckietown DB21 is a autonomy robot from Duckietown, catalogued as Autonomy robot in the Open robotics / embodied AI meta-category. Its primary job is open robotics / embodied AI platform for builders who need an inspectable path rather than a sealed appliance. In practice it targets: Open BOM manipulator and/or mobile base; Teleop / LeRobot / ROS2 paths; and Perception mounts for cam/mic.

Openness is listed as open. Technology notes in this catalog point to: Bus servos + Pi/Jetson compute; LeRobot / ROS2 bridges; and Printable frames; kit or parts. Heavy models usually sit on a phone, SBC, or edge box; the device itself is the sensor, array, camera, brain, or actuator surface depending on class.

For an agentic operating system this is an act surface: open arms or bases let teleop and learned policies close the loop from proposal to physical motion. Catalog possibilities include Voice+vision+arm stacks; and Education / research robots.

Limit: No clear finished-product Amazon listing; buy via Duckietown / specialty channels; Amazon=check.