The SO-ARM101 Low-Cost AI Arm Servo Motor Kit Pro for LeRobot is an optimized, open-source, and DIY-friendly hardware kit designed for constructing imitation learning robotic arms. Priced at \$294.99, with a discounted rate of \$288.99 for quantities of 10 or more, the kit is currently in stock.

The primary purpose of the SO-ARM101 kit is to enable robotics enthusiasts and developers to build their own robotic arm systems suitable for imitation learning paradigms, specifically optimized for integration with LeRobot and Hugging Face projects. The core methodology facilitated by this kit involves leveraging its mechanical and electronic components to create a robotic manipulator that can learn tasks by observing human demonstrations or pre-recorded data. While the text does not detail the specific imitation learning algorithms (e.g., Behavior Cloning, Inverse Reinforcement Learning) or control methodologies (e.g., position control, velocity control, torque control) to be implemented, it provides the necessary hardware foundation for such applications.

The kit includes essential components for the robotic arm's actuation and control interface:

• Servo Motors: These are the actuators responsible for the arm's movement, providing precise angular positioning. The specific torque and speed characteristics of the servos are not detailed, but their inclusion is central to the arm's kinematic capabilities.
• Adapter Board: This electronic component serves as an interface between the servo motors and a higher-level control system (e.g., a single-board computer like a Jetson module, as suggested by the recommended add-ons). It likely handles power distribution to the servos and converts control signals from the main controller to commands interpretable by the servos (e.g., Pulse Width Modulation - PWM signals).
• Cables: These facilitate the electrical connections between the servo motors, the adapter board, and potentially the power supply and control unit.

Crucially, the "Pro" version of the SO-ARM101 kit does not include 3D-printed parts, which form the structural skeleton of the robotic arm. Users are explicitly instructed to purchase the SO-ARM101 3D-Printed Skeleton separately for \$36.99, or opt for a combined kit that includes both the motor kit and the 3D-printed structure. This modular approach allows for customization or replacement of structural components.

Additional related products and suggested add-ons indicate the ecosystem intended for this kit:

• Selection Guide Items: Include variations like the basic SO-ARM101 Motor Kit, SO-ARM101 3D-Printed Parts, various power adapters (e.g., for Viola/Violin, Cello StarAi Arms), different StarAi Arm configurations (Violin, Viola, Cello, and combinations with/without power adapters), a LeKiwi Kit (12V Version), and a Mobile Base with 3D Printed Parts. These suggest a family of compatible robotic components and complete arm systems.
• Recommended Add-ons:
  • SO-ARM101 3D Printed Skeleton: The aforementioned structural components required for assembly.
  • reComputer Mini J4012 with Extension - Intelligent Edge AI Computer with NVIDIA® Jetson™ Orin™ NX 16GB: A high-performance edge AI computer (\$1005.09) indicating that the arm is designed to integrate with powerful processing units capable of executing complex AI algorithms, including those for imitation learning, computer vision, and robotic control. The Jetson Orin NX is well-suited for running deep learning models for perception and control in real-time.
  • Orbbec Gemini 2 3D Camera: A 3D depth camera (\$271.99) essential for robotic perception, enabling the arm's control system to acquire rich environmental data (e.g., object positions, depths, 3D mapping) for tasks requiring visual servoing, object manipulation, or environment understanding, which are common in imitation learning setups.

Logistically, the product is available from US, China, and Germany warehouses, with specific shipping restrictions (US warehouse ships to USA only, DE warehouse ships to European Union only, CN warehouse ships globally). Orders are dispatched within 1-2 business days, with variable delivery times. Payment options include PayPal's "Pay in 4" (interest-free installments every two weeks) and "Pay Monthly" (6-24 month financing, subject to credit approval and APR), with PayPal solely responsible for the terms.