AnalogEMGSensorbyOYMotion
SKU:SEN0240
Introduction
This EMG sensor is launched by DFRobot and OYMotion cooperation, which can reflect muscle and
neural activities of human by detecting sEMG.
This sensor integrates filtering circuit and amplified circuit. It amplifies minimal sEMG within ±1.5mV
1000 times and depresses noises (especially power frequency interference) by differential input and
analog filter circuit. The output signal is analogwhich takes 1.5V as the reference voltage. The
output voltage range is 0~3.0V. The signal strength is depends on muscle activities. The output
signal waveform indicates the muscle activity and helps to analyse and research the sEMG.
Specifically, we can use Arduino as a controller to detect muscle activities, e.g. check whether the
muscle is tense; the muscle strength;etc.
This is an active induction sensor can provide high quality signal collection and it is easy to use.
Simple preparations are needed to apply the module to whether static or dynamic areas. Dry
electrode is applied to the module and good quality signal are available even without conductive gel.
Compared with disposable conductive gel needed by medical electrodes, it is more convenient to
use and has longer service life. Therefore, it is more suited to common users.
Measurements with an analog EMG sensor are noninvasive, convenient and this can be applied to
human-computer interactions. With the development of microcontrollers and integrated electric
circuits, EMG circuits and sensors have not just been applied to traditional medical muscle detection
researches but control systems.
The supply voltage range is 3.3~5.5V; The supply current should not be less than 20mA; The
ripple current and disturbance current should be as low as possible. Stabilized DC voltage is
recommended.
The effective spectrum range is 20Hz500Hz, and the ADC converter which has higher
than 8-bit resolution and 1 KHz frequency are recommended to take samples and digitized to
keep original information.
Placing the metal dry electrode should consistent with the direction of muscle.
The product is not a professional medical device and cannot diagnose and cure disease as
an assistant device.
Specification
Signal Transmitter Board
Supply Voltage: +3.3V5.5V
Operating Voltage: +3.0V
Detection Range: +/-1.5mV
Electrode Connector: PJ-342
Module Connector: PH2.0-3P
Output Voltage: 03.0V
Operating Temperature: 050
Size: 22mm*35mm (0.87inch*1.38inch)
Dry Electrode Board
Electrode Connector: PJ-342
Wire Length: 50cm(19.69inch)
Plate Size: 22 * 35 mm(0.87inch*1.38inch )
weight: 36g
BoardOverview
Analog EMG Sensor by OYMotion
Num Label Description
1
A
A
nalog Signal Output(0~3.0V)
2 + Power Supply Anode(3.3~5.5V)
3 - Power Supply Cathode(0V)
4 PJ-342 Probe Wiring Connector
Tutorial
The tutorial will show you how to use the analog EMG sensor by printing electromyogram waveform
with Serial Plotter of Arduino IDE.
Requirements
Hardware
DFRduino UNO R3 (or similar) x 1
Signal Transmitter Board x1
Dry Electrode Plate x1
Dry Electrode Cable x1
Gravity Analog Cable 3Pinor Dupont Wires x1
Software
Arduino IDE (Version requirements: V1.0.x or V1.8.x), Click to Download Arduino IDE from Arduino®
https://www.arduino.cc/en/Main/Software%7C
ConnectionDiagram
SampleCode
This sample code needs EMGFilters library file, please download and install the EMGFilters Library
file.
How to install Libraries in Arduino IDE https://www.arduino.cc/en/Main/Software%7C

SEN0240

Mfr. #:
Manufacturer:
DFRobot
Description:
Multiple Function Sensor Development Tools Gravity: Analog EMG Sensor by OYMotion
Lifecycle:
New from this manufacturer.
Delivery:
DHL FedEx Ups TNT EMS
Payment:
T/T Paypal Visa MoneyGram Western Union

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