Project Hub /Healthcare Biomedical & Assistive/Bio-signal Acquisition (ECG/EMG/EEG)/DIY: Wireless Prosthetic Hand

Intermediate

ANALOG / DISCRETE

Project Specific

6 – 12 Hours

Partial Kit

DIY: Wireless Prosthetic Hand

A DIY project describing how to design and assemble a wireless prosthetic hand that replicates natural hand movements and muscle contractions.

Originally published on ElectronicsForU

View original tutorial

Parts You'll Need

This project is sourced from another site, not written by us — this list is our best match of their components against what we stock, not a verified bill of materials. Always check the original blog (linked above) for the actual parts list before buying.

TowerPro SG90 Mini Servo – 180 degree Rotation – Standard Quality Rs. 179.00
400 Points Mini Solderless Prototype PCB Breadboard High Quality Rs. 89.00
MB102 Adjustable Breadboard Power Supply Module (3.3V & 5V) for Arduino & Raspberry Pi Rs. 139.00
Jumper Wire 10 Pin Male To Male 20cm Rs. 45.00
Jumper Wire 10 Pin Male To Female 20cm Rs. 45.00

Selected: Rs. 0.00

We don't carry yet: Vibration / Haptic / Misc actuator
Radio Receiver / Transmitter (RC)
3D Printed Parts / Filament / Printer

Browse all components

How It Works

The DIY Wireless Prosthetic Hand operates by translating physical control signals or muscle movements into mechanical motion over a wireless link. The system is split into two primary sections: a transmitting unit and a receiving unit. When a user activates a muscle or input device, the transmitting module captures this bio-signal or control input and processes it using custom microcontroller code written via the Arduino IDE. This processed data is then broadcast wirelessly using a dedicated transmitter module. On the receiving end, the receiver module picks up the incoming wireless signal and routes the data to control the attached servo motors. These servo motors are mechanically linked via cables or tendons to the 3D printed hand components and InMoov robotic arm parts. As the servos rotate based on the received commands, they pull or release the artificial tendons, causing the 3D-printed fingers to flex and extend. This setup allows the prosthetic hand to mirror the desired movements in real-time, effectively replicating natural hand gestures and grip actions without being physically tethered to the control source.

Why Build This

Gain hands-on experience combining 3D printing, mechanics, and wireless electronics for assistive technology applications.

Understand how microcontroller-based wireless communication can be used to control physical actuators like servo motors.

Explore the basics of biomedical engineering and prosthetics by building a functional, moving robotic hand.

Real-World Application

Assistive technology for the physically challenged and remote handling of objects in hazardous environments.

Skills You'll Learn

Wireless communication protocols

Servo motor control

3D printing assembly

Microcontroller programming

Mechanical linkage design

Circuit integration

Safety Precautions

No specific precautions noted for this build — always follow general electronics safety practices.

Technology Tags

PROSTHETICS

ROBOTICS

3D PRINTING

SERVO MOTORS

WIRELESS CONTROL

MUSCLE SENSORS

Frequently Asked Questions

Do I need prior experience with 3D printing to complete this project?

While having access to a 3D printer is necessary to fabricate the hand components and InMoov parts, many makers download pre-printed parts or use local maker spaces if they do not own a printer.

Can I use any microcontroller for this project?

The project requires a microcontroller that is compatible with the Arduino IDE and can interface with both your transmitter/receiver modules and the servo control pins.

How do the servo motors actually move the fingers?

The servo motors act as mechanical winches, pulling on strings or cables routed through the 3D-printed finger joints to curl them inward, and releasing tension to let them straighten.

Gallery

This page is part of Kitkraft's Project Hub — a curated collection of electronics & robotics projects gathered from the maker community to help students and hobbyists discover and learn to build. Kitkraft does not claim authorship of the original project, and makes no representation as to the accuracy, completeness or safety of third-party source material. The summary and "How It Works" explanation above are AI-generated, rewritten with reference to the original tutorial — not a reproduction of it. Full credit and a direct link to the original source are provided above. If you're the original creator and have a concern about how your work is represented here, please contact us and we'll address it promptly.

Kitkraft Project Hub — curated from the maker community, credited at the source.

PRJ-00515