SmartJoint is not a generic motor. It is a complete, autonomous actuation system: - Direct‑drive motor (no gears, zero backlash)- Inductive absolute encoder (AS5715R, <0.075°)- On‑board STM32F405 controller with PID- 48V / 10A power driver- Optical fiber communication (1 Mbps serial bus)- Optional liquid cooling **Why it matters** Most robotic joints are either expensive, fragile, or hard to integrate. SmartJoint is open‑source, modular, and cheap. An engineer with a 3D printer and basic electronics knowledge can build a 4‑DoF prosthetic arm for less than 500 USD. **Key figures** - Peak torque: 50 Nm / Continuous: 20 Nm- Weight: 400‑500 g- Position accuracy: ±0.1°- 360° absolute sensing- Control loop: 1 kHz **Applications** Robotics / Prosthetics & exoskeletons / Aerospace (flaps, deployables) / Automotive assembly / Defense UGVs / Medical devices / Precision agriculture / Entertainment animatronics / Research & education **Current status** Concept fully documented, BOM selected, firmware structure defined. Looking for partners to build the first physical prototype. **License** Non‑commercial use allowed with attribution. For commercial licenses, contact: eaguayo@migst.cl