DFRobot Gravity - analogue EMG sensor, electromyograph -OYMotio.n

The EMG sensor was created through the cooperation of DFRobot and OYMotion. EMG - electromyograph, sensor of electric activity of muscles and peripheral nerves of human. This sensor is a combination of a filtering and amplification chain. It strengthens the minimum value of sEMG in the range of ± 1.5 V 1,000 times and reduces the noise level via the differential input and analog filtering circuit. The output signal is analog, which consumes 1.5 V as the referencevoltage. The output voltage ranges from 0 V to 3 V. The signal's strength depends on the level of activity of the muscles. The waveform of the output signal indicates muscle activity, analyzes, and explores the sEMG. It is compatible withArduino, the supply voltage is from 3.3 V to 5.5 V.

The scheme of disconnecting the EMG sensor from Arduino

Sensor is easy to use, dry electrodes were mounted on a module, good signal quality is ensured without having to use a conductive gel. Measurements with the EMGsensor are non-invasive, comfortable and they can be used in interaction human-computer.

Attention!

• supply voltage is from 3.3 V to 5.5 V
• the supply current should not be less than 20 mA
• disruptive and ripples' current should be as low as possible
• putting the metal, dry electrode must be in accordance with the direction of the muscle
• the product is not a medical device and it cannot diagnose and treat disease

• Metal, dry electrodes: long service life, easy to use
• Differential input 
• Low power consumption
• Single power supply

• Supply voltage: from 3.3 V to 5.5 V
• Working voltage: 3 V
• Output voltage: from 0 V to 3 V
• Detection range: +/- 1.5 mV
• Electrode connector: PJ-342
• Connector of the module: PH2.0, 3-pin
• Operating temperature: 0℃ to 50℃
• Electrode connector: PJ-342
• Cable length: 50 cm
• Board sizes: 22 x 35 mm
• Weight: 36 g

• 1x board with an EMG electrode 
• 1x wrist band
• 1x electrode's cable
• 1x board to transmit an EMG signal 
• 1x analog Gravity 3-pin cable 

• The website of the manufacturer DFRobot SEN0240
• User manual
• EMGFilters library 
• EMGFilters New OYMotion library
• Official website of OYMotion