Multisensor wireless EMG system
MYOstack v2.0
(with digital EMG sensors)

Multisensor wireless EMG system MYOstack will give you the whole range of opportunities in the field of wireless EMG signal registration. Registration of the activity of nine muscle groups at the same time, wireless signal transmission via Wi-Fi up to 200 meters, small size of EMG sensors included in the system, easy installation and configuration - all these make the system an indispensable tool for actual tasks of robotics and sports.

Due to an open platform, the MYOstack system allows you to create a smart bracelet for computer gesture control, make a smart muscle activity monitor for sports, track physical activity during the day, develop robotic arm control and solve much more other tasks requiring an array of EMG sensors and customization of individual parameters.

For visualization, analysis and signal processing we provide the MYOstack_GUI – free open-source software for working with the system, based on Python. It allows to visualize EMG signal in real-time, record and replay it, set filters and envelope. Furthermore you can make any required additions, using Python.


Features:

• Small-sized sensors (with curved surface for better skin contact)
• Dry skin contact electrodes, no need for conductive gels
• Wireless transmitter and receiver included (based on ESP32)
• Wireless signal transmission via Wi-Fi up to 200 meters
• Free open-source software for visualization and processing EMG signals (based on Python)
• Each EMG sensor is equipped with a mechanical signal gain control that allows you to set the most optimal gain parameter for the sensor within the framework of the problem being solved.
• High qualified technical support

Technical Characteristics:

• Sensor type: dry skin contact
• EMG module size: 29.3⨯14.0⨯6.4 mm (+-0.2 mm)
• Sensor output: digital EMG signal
• Operate voltage is 3.3 - 5.5 V. Typical 5.0 V.
• Digital signal:

- I2C interface. Supported modes: 100kHz, 400kHz and 3.4MHz
- 12 bit resolution
- support for up to 9 modules on one I2C bus - I2C address is fixed (set at the production stage).
Address options: 1010000; 1010001; 1010010; 1010011; 1010100; 1010101; 1011000; 1011001; 1011010

• Bandwidth: 10 - 200 Hz
• Wire lengths: long ~ 1 meter (2 pcs.),short ~ 1 cm (4, 6 or 9 pcs.)
• Connector pin pitch: 0.8 mm

The System set includes*:

• EMG sensors (4, 6 or 9 pcs. depending on your choice)
• Transmitter and receiver for wireless signal transmission, based on ESP32
• Wires for connecting modules to each other (4, 6 or 9 pcs. depending on your choice)
• 2 wires for connecting modules (length of each wire - 1m)

* Not included: power bank and USB cables are not included

NOTE: this product is NOT a medical device and should not be used to diagnose or treat medical conditions.

The pdf-file for more information on the features and connection of the system.