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Prosthetic Hand Digital Twin

A Unity-based prosthetic hand digital twin controlled from a web interface.

This project is part of an undergraduate graduation project focused on prosthetic hand finger movement control. The current version allows manual control of a rigged 3D prosthetic hand model through a browser-based interface. The future goal is to connect the same control system to an sEMG/NinaPro DB1-based AI model and eventually to servo motors on a physical prosthetic hand.

Demo Screenshots

Web Controller

Web controller interface

Fist Command

Fist command in Unity

Grasp Command

Grasp command in Unity

Custom Angle Control

Custom angle control in Unity

Project Goal

The goal of this project is to create a clean digital twin system for a prosthetic hand.

The system currently supports manual web-based control of individual finger bending. Later, the same control pipeline can be connected to an AI model trained on sEMG data, such as NinaPro DB1.

Current control flow:

Web Page
→ FastAPI Backend
→ Unity Command Receiver
→ Prosthetic Hand Bone Controller
→ Finger Movement