Fashionstar Starai 7 DoF Robot Arm Kit (Viola & Violin), compatible with Hugging Face LeRobot, ROS2/MoveIt2/Isaac Sim

Overview

Fashionstar Starai 7 DoF Robot Arm kit (Viola & Violin) is a pre-assembled, servo-based robotic arm solution designed for end-to-end learning. The kit includes one leader arm (Violin) for human demonstration and one follower arm (Viola) for learning and execution. It supports the Hugging Face LeRobot framework and ROS2, enabling real-world grasping tasks with great positional accuracy. Note: power adapters are not included and the kit requires two 12V10A power adapters with XT30 connector or loose wires for screw terminals.

Key Features

• Pre-assembled 7 DoF robotic arm kit with leader and follower arms for demonstration and learning.
• Real-world task capable: 300g working payload (with 70% reach) and 470mm reach.
• Self-sustaining suspension: arms can hold position after pressing the button for easier data collection.
• LeRobot framework compatible: SDK under Hugging Face LeRobot for streamlined data collection and training.
• Supported ROS2, MoveIt2 and Isaac Sim: ROS2 topics for control and data, MoveIt2 for inverse kinematics, simulation in Isaac Sim.
• Open-source SDK: Python and C++ development supported.
• Button hover: simulates gravity compensation to hover at any position via a button.

Specifications

What’s Included

• Leader Arm x1
• Follower Arm x1
• Cubes x4
• Allen wrench x1
• Screws x2
• Clamps x2
• Power adapter: Without (requires 12V10A power adapters with XT30 connector x2 or loose wires for screw terminals)

Applications

Imitation learning and reinforcement learning with full data collection, training, deployment, and simulation via the LeRobot framework. On Nvidia Jetson edge devices, it is quick to train customized robotic arms for grasping and placing tasks. Tutorial: .

Hardware Overview