Seeed Studio has released the Amazing Hand, an open-source robotic hand kit with eight degrees of freedom designed for developers working on robotics control and manipulation research. The fully 3D-printable design uses eight Feetech SCS0009 servos arranged in a parallel linkage mechanism, with all actuators housed directly in the palm to keep the unit compact at around 400 grams (14.1 oz). Each of the four fingers offers two-axis motion for flexion, extension, and limited abduction through differential servo control.
The hand measures 19.5 cm (7.7 inches) in overall height with a palm width of 10.5 cm (4.1 inches), and fingers can extend approximately 18 cm (7.1 inches) when fully open. It operates on 5V at 2A through a dedicated controller board and supports Raspberry Pi, NVIDIA Jetson, and various microcontrollers via UART communication. The structure combines rigid internal frames with flexible TPU shells, making it suitable for robotics prototyping, education, and integration into larger systems like custom robotic arms.
The software stack is fully open-source and available on GitHub, with Python libraries for running the hand from a PC or Raspberry Pi and Arduino support through the SCServo library for real-time control. Advanced features include strain-gauge input via XIAO ESP32-S3 and MediaPipe-based hand tracking over WebSocket for teleoperation experiments. The platform also supports joint-angle logging, synchronized visual data capture, and real-time streaming of servo telemetry including position, load, and temperature.
The Amazing Hand is available from Seeed Studio for $89 (€82) in both left and right-hand versions. Each kit includes the complete 3D-printed structural set, eight servos, a XIAO-compatible servo driver board, linkage hardware, power adapter, cables, and basic assembly tools. Additional documentation is available on the Seeed Studio wiki.
