Before you are able to use Extender as a recording device you need a formatted microSD Card. You then need to follow the instructions shown in the following images and text.
Note: All data stored to the SD card is encrypted and the EMOTIV Cortex application and a PRO license is required to decrypt the raw data.
Note: Extender only records the raw data from EMOTIV headsets (raw EEG and motion data) in SD card recording mode. If you need access to our detections for mental commands, performance metrics or facial expressions, please use Extender in Power only or Pass-through mode.
In order to operate Extender as a recording device with a headset, please follow these steps:
Insert the microSD card into Extender.
Turn ON Extender by holding the push button for 2 seconds, the status LED will turn green.
Connect headset to Extender using the charge cable.
The headset with attempt a wireless connection before the USB and it is advisable to unplug all EMOTIV Universal USB receivers and disable BLE devices previously paired with the headset.
Turn ON your headset. When Extender detects the headset the green status LED will turn orange and is ready to record data.
To start a recording press the button, the status LED should now turn red.
In order to stop recording, press the button again. The status LED will now turn back to orange.
A battery powered trigger input can be connected to the extender at anytime and the trigger pulses will be recorded to the files.
To access and interpret the data recorded to Extender in SD card recording mode, please refer to our Data access section.
You can access the data on the microSD card without needing an external card reader. This is explained in the following steps:
Turn Extender ON. The Status LED will turn green.
Ensure no headsets are connected to Extender.
Plug Extender into a PC, your computer should detect it as a generic USB drive and after a few moments you should see it appear as a drive. You can now access the encrypted files on the disk.
Note: All data stored to the SD card is encrypted and the EMOTIV App and a PRO license is required to decrypt the raw data.
Pass through mode allow you to use your EMOTIV headset while it is plugged in. To operate Extender as a pass-through device with your headset, please follow these instructions:
The headset with attempt a wireless connection before the USB and it is advisable to unplug all EMOTIV Universal USB receivers and disable BLE devices previously paired with the headset.
Plug Extender into an open USB socket. The PC connection is the smaller mini-B USB port on left edge of Extender.
Turn Extender ON.
Plug the headset into the other USB port of Extender using the supplied charge cable.
Turn on the headset. The USB detection system of your device should register a disconnection and a new USB connection which simulates an EMOTIV USB Receiver.
Start up your EMOTIV application. The application should register the presence of the Insight connected through Extender.
If the connection does not work, power cycle the headset, then power cycle Extender.
Hardware triggering can be used in pass-through mode.
Extender is designed to be used to extend the battery life of your EMOTIV headset when communicating wirelessly. This is useful if you are using 256Hz EEG and 128Hz motion data which is power intensive. To use it in this mode please follow these steps:
Turn Extender ON. The Status LED will turn green.
Turn on the headset and pair it to a dongle (USB Receiver) or BLE device.
Plug the headset into the headset USB port of Extender using a supplied headset charge cable. The headset will disconnect momentarily and should re-connect, if it doesn't the firmware of your headset might be out of date.
The status LED will turn orange and the charge LEDs on the head should also show orange.
The trigger input cable can be connected to your stimulus device and any rising edge pulses will be translated into hardware trigger pulses. See hardware Triggering section.
Extender has four modes of operation that you can choose from to best suit your needs:
Power-only mode extends the battery life of your headset
SD card recording mode allows you to record data to the Extender, rather than to a computer or mobile device
Pass-through mode directly records data to your computer, bypassing the wireless feature
USB drive mode allows you to access the data on the SD card when connected via USB.