Most Raspberry Pi robotics projects top out at basic servo control and simple computer vision demos. XiaoR GEEK's SamuRoid is aiming considerably higher, packing 22 degrees of freedom, an OpenCV-driven vision system, and cloud-based large language model integration into a 2.3 kg (5.1 lbs) aluminum alloy humanoid that runs on a Raspberry Pi 4 Model B with 4GB or 8GB of RAM. The robot pairs a full ROS Melodic stack with multimodal AI capabilities that let it combine vision, voice, and natural language reasoning in real time.
Under the samurai-themed shell, 22 XRS-series bus servos (models XR-S270 and XR-S15HV) deliver at least 30 kgf·cm of torque at 12V, featuring metal gears, aluminum casings for heat dissipation, and built-in protection against overheating, voltage spikes, and stalling. A dual-hip-joint yaw design enables Z-axis leg rotation for more natural movement, while an MPU6050 6-axis IMU paired with an inverted pendulum algorithm handles real-time gait correction and automatic fall recovery. Vision comes from a 1080p wide-angle camera mounted on a 2-DOF pan-tilt gimbal with a 170-degree field of view, 180-degree pan, and 130-degree tilt. The whole package measures 39.0 x 19.1 x 14.2 cm (15.3 x 7.5 x 5.6 inches) and runs for roughly one hour on a 12V 3,000mAh lithium battery.
The software stack runs Ubuntu 18.04 with ROS Melodic, both end-of-life but still widely used in robotics education, and supports development in Python and C++. A companion RoboManager app for PC and Android provides drag-and-drop motion programming with real-time joint feedback on angle, voltage, and temperature. The robot ships with over 70 pre-programmed actions and 10 structured learning modules covering quick-start guides, OpenCV vision courses, and LLM experiments. Cloud integration with DeepSeek, Doubao, and Tongyi Qianwen enables the robot to process voice commands, analyze scenes, and hold natural language conversations while performing physical actions. The PWR.ROSBOT.X expansion board breaks out all 40 Raspberry Pi GPIO pins and supports over 40 additional modular sensors, giving developers plenty of room to extend the platform. Software downloads and documentation are available on GitHub.
The SamuRoid base package is available now from the XiaoR GEEK store at $1,072.55 (€990), including the fully assembled robot, charger, PS2 controller, SD card reader, and accessories. A Professional Edition runs $1,565.92 (€1,425), while the Developer Edition at $1,794.54 (€1,655) and Flagship Edition at $2,019.10 (€1,840) add extras like a keyboard, gamepad, and 7-inch display, though both higher-tier models are currently out of stock.
