Build a 3-Channel EMG-Controlled Prosthetic Hand with ESP32 – Grip, Pinch, Extend Commands

Every part needed, pre-tested for compatibility, with an AI build companion trained on this exact project. Shipped from Bengaluru in 3-5 days.

Using three Muscle BioAmp Candy sensors on your forearm, you’ll decode raw electromyography (EMG) signals into distinct hand gestures—grip, pinch, and extend—and drive a 5-servo 3D-printed hand through an ESP32. This kit lets you build a functional neuroprosthetic prototype that mirrors natural muscle activation, ideal for wearable health research, assistive device prototyping, or advanced bionics experimentation. No separate sourcing is needed; we’ve bundled every component, including the 3D-printed hand frame and soldering tools, so you can start immediately.

What You'll Build

You’ll create a wearable EMG acquisition and actuation system that reads three forearm muscle channels, processes signals in real time on an ESP32, and maps them to servo positions for a 3D-printed hand frame. The OLED displays live muscle activity and gesture mode, while the PCA9685 driver ensures precise servo control. By the end, you’ll have a tabletop prototype that responds to your own muscle contractions with grip, pinch, and finger extension—ready for demonstration or further research.

What You'll Learn

• Acquisition and filtering of multi-channel EMG signals using BioAmp Candy sensors
• Real-time signal processing on ESP32: threshold detection, moving average, and gesture classification
• Servo motor control via I2C PCA9685 driver for coordinated finger movement
• Integration of OLED display for feedback and debugging in wearable prototypes

Kit Contents

Why Buy This Kit Instead of Sourcing Parts Separately

Who This Kit Is For

This kit is tailored for biomedical engineering students (B.Tech EEE/ECE, M.Tech), researchers prototyping wearable assistive devices, participants in health-tech hackathons like Smart India Hackathon, and professionals exploring EMG-based control. If you’ve worked with Arduino or ESP32 and have a background in signal processing, you’ll find the challenge rewarding. Whether at an IIT, NIT, VIT, or BITS lab, or in a private R&D setup, the kit bridges theory and a working prototype.

Built and Backed by Compoden

Every Compoden kit ships with an AI build companion trained on this exact project — accessible via a QR code on the box, with WhatsApp and email backup. We've spent 10 years building projects for makers, schools, and institutions across India. If a part fails because of a manufacturing defect, replace it free within 7 days.

Choose your assembly option:

• Soldering Kit — 25W soldering iron, 60/40 solder wire, flux, and small perfboard for permanent assembly.
• Breadboard Combo — 800-point full-size breadboard with 65-piece jumper wire pack for solderless prototyping.