Overview of Muscle Sensor

Granted, using our muscles to control things is the way that most of us are accustomed to doing it. We push buttons, pull levers, move joysticks… but what if we could take the buttons, levers and joysticks out of the equation? That’s right, take the electrical signal straight from the muscle and put it into your device. Thanks to shrinking amplifier technology, we can now do exactly that!

Measuring muscle activity by detecting its electric potential, referred to as electromyography (EMG), has traditionally been used for medical research. However, with the advent of ever shrinking yet more powerful microcontrollers and integrated circuits, EMG circuits and sensors have found their way into all kinds of control systems.

This sensor will measure the filtered and rectified electrical activity of a muscle; outputting 0-Vs Volts depending the amount of activity in the selected muscle, where Vs signifies the voltage of the power source. It’s that easy: stick on a few electrodes, read the voltage out and flex some muscles!

This kit comes with everything you need to start sensing muscle activity with your Arduino or controller of choice.

Features:

  • Small Form Factor
  • Specially Designed For Microcontrollers
  • Adjustable Gain
  • 3.5mm Connector
  • Breadboard Compatible
  • Power supply voltage: min. +-3.5V

Includes:

  • Muscle Sensor Board
  • 24" Cable Leads
  • 3 Disposable Surface Electrodes

Dimensions: 1.0" x 1.0"

Pins Layout

 

Electrical Specifications

RAW EMG vs Rectified & Smoothed EMG

Our Muscle Sensors are designed to be used directly
with a microcontroller. Therefore, our sensors do
not output a RAW EMG signal but rather an
amplified, rectified, and smoothed signal that will
work well with a microcontroller’s analog‐to‐digital
converter (ADC). This difference can be illustrated by
using a simple sine wave as an example.

Documents: