Mentalab Explore+ Manuel utilisateur

Mentalab

Explore+

Quick Start Guide

It’s Explore Plus

32 channels

1kHz streaming

2kHz ofine recording

μS precision

Triggers via USB-C

Remote updates

Internal memory

Thank you for purchasing

Mentalab Explore+

Building upon years of experience designing

ExG systems, Mentalab Explore+ represents the

height of mobile EEG design.

Providing exceptional data quality, fast set-up

times, remote updates, internal memory, open-

source APIs, and much more, Explore+ was

designed from the ground up to meet the needs of

researchers.

Getting started

This guide contains basic information to help you

start streaming and recording data with your

Mentalab Explore+ amplier.

For more extensive information regarding safety and

usage, please refer to the user manual. Further

guidelines and instructional videos can be found at

wiki.mentalab.com.

Typical package contents

• Mentalab Explore+ amplier

• Electrodes of your choice

• Cap of your choice

• Shockproof case

• USB-C cable

• Elastic cap

• Electrode gel

• Bluetooth dongle

• Cleaning set

Bluetooth ID

To locate your amplier’s MAC address – its Bluetooth ID – look

at the label on the back of the amplier. The last four digits on

the label are the amplier’s Bluetooth ID.

Bluetooth ID cont.

For example, the label below corresponds to an amplier whose

Bluetooth ID (MAC address) is Explore_1438:

Getting started

Explore+ 8 Explore+ 16 Explore+ 32

No. channels 8 16 32

SPS (Hz)

Ofine Up to 2k Up to 1k

Online Up to 1k 250

Weight (g) 27 36

Battery life (hrs) 4 – 10

Diff. input range (mVPP) 800 (±400 mV)

Input impedance (GΩ) 1

Resolution (bits) 24

RMS noise (μV) <1

Interface USB-C

Flash memory (MB) 512 4000

Bluetooth range (m) ~10

095e80/1438

F C C I D : T 7 V P A N 1 0

Getting started

Start-up and data collection

1. Charge your amplier via USB. A green LED indicates

sufcient battery. Disconnect from the power source prior to

use.

2. Position the electrodes in the cap, attach cables to dry

electrodes, and connect the cable set to the amplier. Each

channel records against a unipolar reference electrode. Use

Velcro to secure your amplier to an EEG cap.

3. Push the power button to start the amplier. It will now

record data to internal memory.

4. Two blue blinks per second indicate that the amplier is

advertising via Bluetooth, MAC address Explore_XXXX.

5. Once a Bluetooth connection to the host machine has been

established (see Section: API), your Explore+ amplier 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 amplier’s button once to set an event marker. A

pink LED signal indicates that a marker has been set.

7. Turn off the amplier after use. To do this, hold down the

amplier’s button for three seconds until the LED blinks red

three times. Always shut down your Explore+ amplier

before connecting it to a host machine via USB.

Instructions

The following table describes Explore+'s LED light codes.

LED color Blinking pattern Indicates

Red

Yellow

Green

Solid at start-up

Start-up in progress. Color

indicates battery level.

(green: > 60%, yellow: > 30%)

Blue Solid at start-up Start-up in progress.

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. Ofine mode

in progress.

Pink Blinking 1x / sec

Not enough space in memory.

Press the button three times to free

up space.

Light pink One-time ash

Button pressed. Marker with

timestamp corresponding to button

event stored and transmitted

Red Flash 3x Amplier shut down.

Connection

To pair your Explore+ amplier with a mobile or computer, use

your host machine’s standard Bluetooth menu. Explore+ transfers

data online as soon as a Bluetooth connection is established.

If the connection is lost, Explore+ will revert to advertising mode,

ready to reconnect. Explore+ will remain in this mode for four

minutes before moving to ofine mode.

Data

Explore+ samples ExG data at 250 Hz (default) with a 24-bit

resolution. The amplier also records and transmits temperature,

battery voltage, accelerometer, gyroscope, and magnetometer

data. This means you can derive the absolute orientation and

status of your amplier at all times.

Explore+ stores data in binary les (.BIN sufx). To retrieve your

data, connect your amplier to a computer via USB. To delete

les, format the memory using 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, Java, and MATLAB. Everything is open-source.

explorepy, written in Python, is our most mature API. It provides

an extensive set of tools that allow you to build customized

biosignal applications.

Software cont.

For detailed instructions on how to install and use explorepy, see:

https://explorepy.readthedocs.io.

Explore Desktop provides a user-friendly graphical interface for

explorepy. It allows you to measure impedances, visualize data,

push to LSL, and set event markers.

Event triggers

Explore+ supports three kinds of event triggers.

1. Amplier button press.

2. TTL pulse: Requires a USB TTL pulse generator (Mentalab

trigger stick), a trigger isolator, and a USB to USB-C cable.

Generates minimal latency event markers.

3. Software markers: Use Mentalab APIs or external software

like LSL and OpenViBE to generate programmatic markers.

Instructions Instructions

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.

Mentalab Explore+ is not designed for medical use.

It should not be used for diagnosis or treatment in a

medical context.

Our team is always happy to support you in

developing your own innovative solutions.

Contact

[email protected]

https://mentalab.com

https://github.com/Mentalab-hub

https://explorepy.readthedocs.io

Mentalab GmbH, Weinstr,. 4, 80333 Munich

Mentalab US LLC, 2670 Worden St #19, San Diego, CA 92110

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