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Seed Robotics logoSeed Robotics

Seed Robotics Robot Hands and Manipulators

Price
Price not disclosed
Type
Components · Dexterous Hands
Status
Discontinued
Availability
Discontinued
Release Date
Unknown
Country/Region
Portugal
Latest parameter verification
2026-10-31
5 DOF
Active degrees of freedom
4
Finger count

RH5D is a child-size anthropomorphic research hand from Seed Robotics, with five seed28 smart actuators and an opposable thumb. It supports Dynamixel, ROS and PyPot. It lacks wrist flexion and adduction and has been discontinued and superseded by RH6D.

1 / 1RH5D

Technical specifications

Model specifications are shown below. Configuration-specific values are listed separately; missing data does not mean zero or unsupported.

Degrees of freedom and drive

Finger count
4
Actuator count
5
Actuator technology
Smart servo motors
Active degrees of freedom
5 DOF
Materials
Dyneema-reinforced tendons
Transmission mechanism
Tendon drive
Actuator Model
seed28

Mechanical and mounting

Mounting interface
4–6 screws at the rear wrist mounting position

Mechanical Structure

Dexterous Hand
Anthropomorphic hand with an opposable thumb
Joint Encoder Resolution
Native 10-bit position sensing; optional 12-bit interpolated representation
Joint Limit
Wrist rotation supported; no wrist flexion or adduction

Sensors

Sensors
Actuator position, speed, temperature and current feedback

Battery and Runtime

Power Supply
External power through VDD/GND on the main connector; USB does not power actuators

Compute Platform

Onboard Compute
EROS main control board and embedded smart-actuator electronics
Software Algorithm
Adjustable actuator PID parameters

Safety and Protection

Human-Robot Safety
Magnetic finger detachment protection

Interaction and Communication

Communication
RS485
Communication
Single-wire or full-duplex TTL available by configuration
External Port
Micro-USB virtual serial port for configuration and maintenance

Development and Expansion

Configuration Options
Left/right versions; optional Bluetooth and capacitive pads
Integration Interface
Dynamixel Protocol 1.0 and 2.0; Seed Robotics STP
Operating Modes
Position commands with target speed settings
Package Contents
Single hand or a left/right pair, according to order
Secondary Development (SDK)
Open-source ROS package and PyPot integration
Workflow Integration
Optional hand configuration for the NICO research robot

Configurations

RH5D

Communication and control

Communication interface
RS485

Default main-connector interface. One-wire or full-duplex TTL requires a separately requested delivery configuration.

Communication interface
USB

Built-in micro-USB virtual serial port, primarily for console, diagnostics and maintenance. The main connector must still supply external power.

RH5D — optional capacitive HRI touch pads

Communication and control

Communication interface
RS485

Default main-connector interface. One-wire or full-duplex TTL requires a separately requested delivery configuration.

Communication interface
USB

Built-in micro-USB virtual serial port, primarily for console, diagnostics and maintenance. The main connector must still supply external power.

Sensing

Has tactile sensing
Supported (optional capacitive touch)

Optional capacitive HRI touch pads; this confirms touch detection, not pressure or multi-axis force measurement.

Commercial Status

Status
Discontinued
Price
Price not disclosed
Release Date
Unknown
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