3 Operation Instructions
3.1 Operating Modes
Mentalab Explore has two main operating modes: offline and online. When in offline mode,
the device collects data and stores it in its internal flash memory. Users can extract the
recordings from the flash memory via a micro-USB cable after the recording. Data can be
retrieved and transformed with different tools provided in the APIs.
During online mode, data is transmitted via Bluetooth in real-time, enabling the user to
collect, monitor, and visualize data, and to configure the device through one of the available
APIs (explorepy, exploreMATLAB and libexplorecpp). In this mode, the Explore device sends
the data and communicates in configuration packets with the API on the host machine.
While you can start using the device right out of the box, we recommend charging it for at
least 1 hour. To charge the device, connect the micro-USB cable to a compliant source. The
green LED indicates sufficient battery. After charging, unplug the device from the power
source.
3.2 First Setup
Set up the measurement electrodes on your subject in your preferred configuration. Each
channel (1-4 or 1-8) is recorded against the reference electrode. The electrodes are
configured in the order depicted below. In a 4-channel device, channels 5-8 are inactive.
Figure 3. Device configuration
Push the button to turn on your Explore system. At system start, the LED shows the battery
level (green > 60 %, yellow 30 - 60 %, red < 30 % charge remaining).
Upon normal start, the device begins to record on the flash memory immediately. It starts
advertising and waits for a Bluetooth connection to a host machine. During advertising
mode, the LED blinks in blue at 2 Hz (twice per second). If no connection is established after
4 minutes, the device will automatically go to offline mode. In this state, the LED blinks in
green at a rate of 1 Hz and the Explore keeps recording data in the internal memory. You can
leave the device in recording mode for as long as you wish. With a full battery, recording for
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