Figure. power button and status LED on the device.
. With the sensor band not worn, press and hold the power button for 1 second.
Figure. Press the power button for more than one second.
Figure. The blue LED lights up. At this time, release the power button. If you release the power button before the blue LED is lit, the unit will not turn on.
[You have to Power on / off with no band on head.]
. The red LED and blue LED blink when the device is powered and the device is ready for use.
Figure. If the red LED and the blue LED blink at the same time every 1 second, the device will operate normally (waiting state). At this time, when the device is connected to the host (computer, smart phone, etc.) via Bluetooth, only the blue LED flashes.
[Refer to the data specification (LXE141) for the operation mode of the device.]
If you remove the sensor band from the head after use, the unit is in the “Power On” state  (standby mode). At this time, power off is performed.
. Press the power button (see figure ) in the state  of “Power On”. If you press and hold for more than 2 seconds, the blue LED remains lit (does not blink).
Figure. At this time, it is shown in Figure.
. Release the power button after the blue LED lights up. Then, the power supply to the device is stopped.
Figure. Power off is complete.
[If standby mode lasts for 3 minutes, auto power off. When the device is operating in the measurement mode, the device power is automatically turned off even if the Bluetooth connection has been off for more than one minute. Refer to the data specification (LXE141) for device operation mode.]
If the status LED does not light up after you press the power button, charge the device using the supplied micro USB cable (component # 2) (the device operates in charge mode).
. Connect the micro USB cable to the USB port on your computer or smartphone charger.
Figure. Connect the micro USB cable to the USB port on your computer.
. micro USB cable Connect the connector to the device.
Figure. Connect the charging micro USB cable to the micro USB cable connector on the device.
. Green LED flashes every 2 seconds after USB connection.
Figure. When charging, the green LED blinks every 2 seconds. When charging is complete, the green LED remains on.
Wearing sensor band
wear sensor band on head
If power is applied to the device normally (Figure ), wear an EEG sensor band on the head.
. Attach the band to the head. Wear the measuring electrode part while rubbing it up and down so that the measuring electrode is attached well to both foreheads.
Figure. Sensor band worn on the head.
[Before worn, it is necessary to rub the surface of the measuring electrode with a finger or wipe it with a wet tissue to keep the surface of the electrode clean, and to fix it to the head so that the band does not shake after wearing it.]
. After wearing the band, attach the ear clip to the right earlobe.
Figure. Attach the ear clip electrodes (reference and ground electrodes) to the right earlobe.
[When the band is correctly attached to the head and the electrode is attached to the skin, the device recognizes the wearing condition. In this case, the green LED is blinking every 2 seconds. At the same time, the red LED flashes in sync with the heartbeat pulse. See the data sheet (LXE141).]
Remove the sensor band from your head
. To remove the sensor band from your head, remove it from the earlobe first from the ear clip attached to the right earlobe.
 Take the band off your head.
. If you are not using the device, power off the device (see Powering Off).
[If the host and Bluetooth connection are released for more than one minute while the sensor band is worn, or if the sensor band is not worn for more than 3 minutes, the power of the device turns itself off.]
View measurement waveform
To see the measurement waveform, first put the device on the head and let the device operate in the measurement mode. The software displays the data to be output when the apparatus is driven in the measurement mode. Two types of data are displayed. One is to display the data provided by the device as it is, and the other is to process and display the data provided by the device. In the former, there are left and right brain wave waveforms (EEG-CH1, EEG-CH2), pulse wave waveform (PPG), secondary differential pulse wave waveform (sdPPG), heartbeat pulse (pulse) and heartbeat interval (peak_interval), And the latter has an EEG power spectrum and a heart rate interval histogram.
If the device is properly worn (see ), run the neuroNicle FX2 Viewer to check the measured waveform.
[In order to check the measured waveform with software, the computer must have a Bluetooth communication port. If there is no Bluetooth communication port, first install the Bluetooth dongle on that computer. (Refer to the manual of the purchased dongle for installation instructions.)]
[If your computer is equipped with a Bluetooth communication port, you should add neuroNicle FX2 as a Bluetooth device. ( how to add devices, click here ↓ )]
[nnFX2_Viewer Software must be installed on your computer. ( Viewer software installation instructions. click here ↓ )]
View measuring data
Video : Real time transmission of the EEG and PPG raw data via bluetooth. play time 15 seconds.
Use the following procedure to check the data.
. Set the COM port of the device.
Figure. Set the COM port of the device.
. Click the “COM Check” button.
Figure. The COM Check button is disabled, and the Start and File menus are active.
. Click the “Start” menu to check the measurement waveform.
Figure. Measurement data that can be checked with the neuroNicle FX2 device.
You can see the direct data (red rectangle), the processed data (blue rectangle), and the device status information (purple rectangle) provided by the device. The processed data includes the EEG power spectrum obtained by software FFT from the EEG waveform and the histogram graph obtained from the heart rate interval data. We can confirm the alpha peak in the EEG power spectrum.
Saving the measurement waveform
The software can store measurement data with real-time waveform display. The data items stored are as follows : EEG-CH1, EEG-CH2, PPG, sdPPG, Pulse, peak_Interval.
The data is saved in real time txt file format at 4msec intervals, and the size of the file to be saved is displayed at the lower left of the screen.
To save the waveform, follow the procedure below.
. Name the file. Click on the “File” menu in the “After COM check” in the figure  before viewing the waveform.
Figure. Clicking on the “File” menu brings up the file specification window. Here, specify the appropriate folder and filename.
. Check the folder and name of the specified file.
Figure. Make sure the specified folder and name are correct.
. Click on the “Start” menu to get the measured waveform. At this time, it is confirmed that the ” file size ” increases in kB units.
Figure. As the waveform view progresses, the file size increases. It is confirmed that it is currently 102kB. Even if the software stops in the middle, the stored data is safely preserved. There is no EEG power spectrum and heart rate interval histogram data in the stored data.