User Guide for MENTALAB models including: Explore, Explore Unlock the Brain with Cutting Edge Biosensor, Unlock the Brain with Cutting Edge Biosensor, Brain with Cutting Edge Biosensor, Cutting Edge Biosensor, Edge Biosensor, Biosensor

quick-start-guide

Explore

3 oct. 2022 — Please refer to the user manual or website for more details. Software. Capture and visualize data using Explore's APIs written in. Python, C , Java, and MATLAB ...

Mentalab Wiki

2 Enjoya12hbatterylife,1kHzsamplingrate, 24bitresolution,and9-axismotiondata. Recordtointernalmemoryandworkoffline usingourextensiveopen-sourcesoftware.


File Info : application/pdf, 7 Pages, 1.69MB

PDF preview unavailable. Download the PDF instead.

Mentalab Explore Quick Start Guide
Explore
Quick Start Guide

Overview
Thank you for purchasing a Mentalab Explore device.
Mentalab Explore is a versatile, high-end solution for biomedical recordings that provides researchgrade precision in a mobile format.

Enjoy a 12h battery life, 1kHz sampling rate, 24 bit resolution, and 9-axis motion data.

Stream data to Bluetooth for real-time analysis at over 10 meters.

Record to internal memory and work offline using our extensive open-source software.

2

3

Getting started
This guide contains basic information to start streaming and recording data with your Mentalab Explore device.
For more extensive information regarding safety and usage, please refer to the user manual. Further guidelines and instructional videos can be found at mentalab.com.
Package contents · Mentalab Explore device in shockproof case. · USB 2.0A to micro-USB cable. · Electrode sets and caps of your choice. · Electrode gel and cleaning solution (optional).
Device configuration Your Explore device's configuration is encoded on the device label on the back of the device. An 8-channel device without flash memory and Bluetooth name "Explore_1438" would appear as follows:

095e80/1438

4-digit ID

Bluetooth ID

# Channels 4, 8
4

Flash memory 1: Yes, 0: No

Getting started

Technical specifications

No. channels

4, 8

Sampling rates

250 (default), 500, 1000 Hz

Dimensions

41 x 42 x 17 mm

Battery life

Up to 8 hr online, 12 hr offline

Differential input range ± 400 mV

Input impedance

1 G

Resolution

24 bit resolution, 0.4 µVrms noise

USB output interface USB 2.0

Additional sensors

Gyro-, accelero- and magnetometer: 20 Hz Device temperature, battery: 1 Hz

Flash memory size

512 MB

Bluetooth range

Approximately 10 m

Collecting data
1. Charge the device via USB. A green LED indicates sufficient battery. Disconnect from the power source prior to use.
2. Connect the cable set to the device and place the electrodes on the body. Each channel records against a unipolar reference electrode. The order of the electrodes is shown below. Use the Velcro strap to secure the device to an EEG cap.
3. Push the power button to start the device. It will now record data to internal memory, if present.
5

Getting started
4. Two blue blinks per second indicate that the device is visible via Bluetooth. The device's Bluetooth name is Explore_XXXX. The last four digits on the device's label are its Bluetooth ID.
5. Once a Bluetooth connection to the host machine has been established (see Section: API), the Explore device will start transferring data via Bluetooth. Use Explore's open-source APIs to access impedance values, visualize the signal stream, change device settings, and more.
6. Press the device button once to set a mark during the recording. A pink LED signal indicates that a marker has been set.
7. Turn off the device after use. To do so, hold the power button for three seconds until the LED blinks red three times. Always shut down the device before connecting it to USB.
Reference CH1 CH2 ... CH8 RESP
6

Instructions

This table describes Explore's LED light codes:

LED color Blinking pattern Indicates

Red Yellow Green

At device startup, about 3 sec

Startup in progress. The color indicates the battery level (green > 60%, yellow > 30%)

Blue

Blinking 2x / sec Bluetooth visible and advertising

Blue

Blinking 1x / sec

Bluetooth visible and connected to host machine. Online mode in progress

Green

Blinking 1x / 3 sec

Bluetooth is inactive. Offline mode in progress

Pink

Blinking 1x / sec

Not enough space in memory. Press the button twice to free up space

Light pink One time flash

Button has been pressed: a marker with the timestamp corresponding to the button event is stored and transmitted

Red

Flash 3x

Device shutting down

Connection
To pair your Explore device with a mobile or computer, use the standard Bluetooth menu. Explore uses a Serial Profile Protocol (SPP) to transfer raw data as soon as a Bluetooth connection is established.
If the connection is lost, the device will revert to Bluetooth-visible mode, which means it is ready to reconnect. Explore remains in this state for four minutes. After this, it moves to offline mode if the device has internal memory, or else shuts down.
7

Instructions

API diagram

Data
Explore samples ExG data at 250 Hz (default) with a 24-bit resolution. The device also records and transmits accelerometer, gyroscope, and magnetometer data. This means you can derive the absolute orientation of your device at all times. The device also communicates its temperature and battery voltage continuously.

Data are stored in a binary file (.BIN suffix) in flash memory. To retrieve data from the device, connect Explore to a computer via USB. Files cannot be deleted via USB, instead they must be overwritten. To format the memory (and delete all previous data), use our open-source APIs. Please refer to the user manual or website for more details.

Software
Capture and visualize data using Explore's APIs written in Python, C++, Java, and MATLAB. Everything is open-source. To contribute, please open a pull request at: https://github.com/Mentalab-Hub.

explorepy, written in Python, is our most mature API. It provides an extensive set of tools that allow you to build customized biosignal applications. For detailed instructions on how to install and use explorepy, please visit: https://explorepy.readthedocs.io.

Explore Desktop is our newest software. It provides a graphical

user interface to explorepy, allowing you to measure

impedances, visualize data, push to LSL, and set event markers

using graphical buttons, rather than a command-line.

9

Contact
Mentalab is a biomedical technology company from Munich, Germany.
Mentalab Explore is a high-end, mobile measurement device for biosignal applications.
Mentalab Explore is used by researchers and scientists around the world in applications ranging from brain-computer interfaces to sleep and neuropsychology research.
Our team is always happy to support you in developing your own innovative solutions.

contact@mentalab.com support@mentalab.com

https://mentalab.com

https://github.com/Mentalab-Hub

https://wiki.mentalab.com

Mentalab GmbH

Weinstr. 4, Munich,

10

D-80333, Germany

11



References

PDFlib PDI 9.3.1-i (Win32) Serif Affinity Publisher 1.10.5