Dragon-Arm One is a lightweight, 3d printed, five-axis articulated robotic arm built as an open-source platform for robotics development, research, and advanced education.  Each axis integrates a SpaceDragon AA270 or AA360 absolute magnetic encoder (MT6701-based), providing continuous real-time angular feedback directly from the output shaft. Unlike typical stepper-driven arms that needs callibration after every power reset, Dragon-Arm One always knows its exact joint position — even after power loss. No homing routines, no reference switches, no cumulative position drift. This solution significantly increases its simplicity and affordability.

Control architecture is built around the Arduino Uno Q dual-processor platform, forming a fully open and developer-friendly ecosystem. One processor is dedicated to deterministic motion control and low-level kinematics, ensuring stable trajectory execution and predictable dynamic behavior. The second processor runs Linux-based environments, allowing native support for Python, AI frameworks, networking services, and web-based interfaces — all without external single-board computers. This hardware-level separation of motion and high-level computation prevents performance degradation under load and enables advanced features such as computer vision, autonomous task execution, and cloud connectivity.

As an open-source system, Dragon-Arm One provides full access to mechanical design files, electronics architecture, firmware, and control logic. Users can modify kinematics, implement custom motion algorithms, integrate additional sensors, or develop entirely new application layers. The result is not just a robotic arm, but a scalable manipulation platform that can evolve alongside the user’s technical ambitions — from educational experimentation to advanced research and AI-driven automation.