The EMG Muscle Activity Sensor Module is a compact bio-signal acquisition board designed to measure and amplify electrical activity generated by skeletal muscles (Electromyography signals). It detects subtle electrical potentials produced during muscle contraction and converts them into an analog output signal that can be read by microcontrollers such as Arduino, ESP32, Raspberry Pi, or other development boards.

This module is ideal for robotics control, prosthetics research, biomedical projects, gesture recognition systems, and human-machine interface applications.

Specifications

Signal Type:

• Electromyography (EMG)

Input Voltage:

• 3.3V – 5V DC

Output Signal:

• Analog voltage (0 – VCC)

Gain:

• High-gain amplification (typically adjustable or preset)

Filtering:

• Integrated noise filtering

• Rectified and smoothed output (varies by model)

Electrodes:

• Compatible with standard disposable biomedical electrodes

Board Features:

• Onboard signal amplification circuit

• Noise reduction filtering

• 3-pin or 4-pin interface (VCC, GND, OUT, sometimes SIG/RAW)

Short Features

• Detects muscle electrical activity

• Amplified and filtered output

• Works with Arduino, ESP32, and other MCUs

• Low power consumption

• Easy electrode connection

• Compact and lightweight design

Applications

• Prosthetic hand control

• Robotics and gesture control

• Human-machine interface systems

• Biomedical research projects

• Muscle fatigue monitoring

• Exoskeleton systems

• Wearable health monitoring devices