 |
Driver SDK
1.6
|
|
Driver SDK
1.6
|
In this page we describe the different signals recorded by the bitbrain devices and their characteristics.
In this section you can look for the signal tables of the bitbrain devices.
All the devices have also SD Card recording available. The name of the signal is a unique identifier.
It is noticeable that the size (number of channels x number of samples) is fixed independently of the mode configured. Some modes can, if required, left some of the channels undefined.
You can find all the information about this device here.
| signal | channels | samples | rate | modes |
|---|---|---|---|---|
| EEG | 8 | 8 | 256Hz | 0-1 |
| IMU_B | 9 | 1 | 32Hz | 0-1 |
| FOT | 1 | 8 | 256Hz | 0-1 |
| DIN | 1 | 8 | 256Hz | 0-1 |
You can find all the information about this device here.
| signal | channels | samples | rate | modes |
|---|---|---|---|---|
| EEG | 12 | 8 | 256Hz | 0-1 |
| IMU_B | 9 | 1 | 32Hz | 0-1 |
| FOT | 1 | 8 | 256Hz | 0-1 |
| DIN | 1 | 8 | 256Hz | 0-1 |
You can find all the information about this device here.
| signal | channels | samples | rate | modes |
|---|---|---|---|---|
| EEG | 12 | 8 | 256Hz | 0-1 |
| IMU_B | 9 | 1 | 32Hz | 0-1 |
| FOT | 1 | 8 | 256Hz | 0-1 |
| DIN | 1 | 8 | 256Hz | 0-1 |
You can find all the information about this device here.
| signal | channels | samples | rate | modes |
|---|---|---|---|---|
| EEG | 8 | 8 | 256Hz | 0-1 |
| IMU_B | 9 | 1 | 32Hz | 0-1 |
| FOT | 1 | 8 | 256Hz | 0-1 |
| DIN | 1 | 8 | 256Hz | 0-1 |
You can find all the information about this device here.
| signal | channels | samples | rate | modes |
|---|---|---|---|---|
| EEG | 16 | 8 | 256Hz | 0-1 |
| IMU_B | 9 | 1 | 32Hz | 0-1 |
| FOT | 1 | 8 | 256Hz | 0-1 |
| DIN | 1 | 8 | 256Hz | 0-1 |
You can find all the information about this device here.
| signal | channels | samples | rate | modes |
|---|---|---|---|---|
| EEG | 32 | 8 | 256Hz | 0-1 |
| IMU_B | 9 | 1 | 32Hz | 0-1 |
| FOT | 1 | 8 | 256Hz | 0-1 |
| DIN | 1 | 8 | 256Hz | 0-1 |
This device is composed by two versatile_eeg_32 devices synchronized by an external signal generator through their Digitan Input channels. The signals received from the driver are already synchronized
| signal | channels | samples | rate | modes |
|---|---|---|---|---|
| EEG | 64 | 8 | 256Hz | 0-1 |
| ExG_A | 4 | 8 | 256Hz | 0-1 |
| IMU_B | 9 | 1 | 32Hz | 0-1 |
| IMU_B | 9 | 1 | 32Hz | 0-1 |
| FOT | 2 | 8 | 256Hz | 0-1 |
You can find all the information about this device here.
| signal | channels | samples | rate | modes |
|---|---|---|---|---|
| GSR | 1 | 2 | 64Hz | 0-1 |
| BVP | 1 | 2 | 64Hz | 0-1 |
| ACC | 3 | 2 | 64Hz | 0-1 |
You can find all the information about this device here.
| signal | channels | samples | rate | modes |
|---|---|---|---|---|
| ExG_A (1) | 1 | 8 | 256Hz | 0-1 |
| ... | ... | ... | ... | ... |
| ExG_A (8) | 1 | 8 | 256Hz | 0-1 |
| GEN (1) | 1 | 8 | 256Hz | 0-1 |
| ... | ... | ... | ... | ... |
| GEN (8) | 1 | 8 | 256Hz | 0-1 |
| DIN | 3 | 8 | 256Hz | 0-1 |
| DOUT | 1 | 8 | 256Hz | 0-1 |
| IMU_B | 9 | 1 | 32Hz | 0-1 |
| COM (1) | 9 | 8 | 256Hz | 0-9 |
| COM (2) | 9 | 8 | 256Hz | 0-9 |
In this section the different signals are described in detail.
EEG signal is composed by different number of channels, depending on the EEG device connected. Each channel represent the measurement in milivolts of each sensor. The order of the channels depends also on the distribution of the sensors in the head.
The EEG signal has no special working modes. 0 for disabling and 1 for enabling the record of the signal.
IMU_B signal provides information from the internal magnetometer, accelerometer and gyroscope.
| channel | data | units |
|---|---|---|
| 1 | Accelerometer X | g (9.8 m·s-2) |
| 2 | Accelerometer Y | g (9.8 m·s-2) |
| 3 | Acceleroemter Z | g (9.8 m·s-2) |
| 4 | Gyroscope X | deg·s-1 |
| 5 | Gyroscope Y | deg·s-1 |
| 6 | Gyroscope Z | deg·s-1 |
| 7 | Magnetometer X | μTeslas |
| 8 | Magnetometer Y | μTeslas |
| 9 | Magnetometer Z | μTeslas |
The IMU signal has no special working modes. 0 for disabling and 1 for enabling the record of the signal.
Photodiode signal provides light intensity measurements.
The photodiode signal has no special working modes. 0 for disabling and 1 for enabling the record of the signal.
Digital input signal provides a value 0 or 1 depending on the signal registered by the device. The number of channels corresponds to the number of bits available.
The digital input signal has no special working modes. 0 for disabling and 1 for enabling the record of the signal.
GSR (Galvanic Skin Response) signal registers the electric characteristics of the skin. The measurements obtained are in milivolts.
The GSR signal has no special working modes. 0 for disabling and 1 for enabling the record of the signal.
BVP (Blood Volume Pulse) signal registers the changes in the volume of blood traversing a specific area of the skin. The measurements are obtained in milivolts.
The BVP signal has no special working modes. 0 for disabling and 1 for enabling the record of the signal.
ACC (accelerometer) signal is composed by three channels (X, Y, Z), each one representing a different axis in the space. Each channel measures the acceleration in g (9.8 m/s^2) of the sensor in the specific axis.
The ACC signal has no special working modes. 0 for disabling and 1 for enabling the record of the signal.
ExG signals measure the voltage (in milivolts) at each sensor.
The ExG signal has no special working modes. 0 for disabling and 1 for enabling the record of the signal.
GEN signals are generic analog inputs measured in milivolts.
The GEN signal has no special working modes. 0 for disabling and 1 for enabling the record of the signal.
Digital output signal provides a value 0 or 1 depending on the signal sent by the device.
The digital output signal has no special working modes. 0 for disabling and 1 for enabling the use of the signal.
COM signal provides a 9 channel digital communication port. Diferent devices can be connected: GPS and IMU
The digital input signal has special working modes. 0 for disabling the signal. From 1 up to 8, let you connect, respectively, up to 8 external IMU devices. Mode 9 is reserved for communications with an external GPS device.
1.9.1