Application
programming interface for g.MOBIlab on Pocket PC or Notebook/PC
What is Programming API for g.MOBIlab ?
 The Application Programming Interface (API) for g.MOBIlab enables you to program your own sophisticated biosignal
acquisition and data processing applications based on the g.MOBIlab amplifier on a Pocket PC and Windows based PC/Notebook.
Sample programs and the well documented source code in the
electronic manual serve as a template for your programs. The Application
Programming Interface for g.MOBIlab optimally supports your own
development of mobile biosignal data processing programs. Debugging the
programs directly on the Pocket PC or using the built-in emulator enables
you to accelerate the development process.
 The g.MOBIlab API allows you to setup the
communication with the g.MOBIlab amplifier, to initialize the amplifier, to
start and stop the data acquisition, to set and reset digital I/O lines and
to store data on the Pocket PC.
Using emMbedded Visual C++ or eMbedded Visual Basic
development environment you can create and program Windows Mobile
applications relaying on user friendly graphical user interfaces.
Using Visual C++ (Borland Compiler/Microsoft Compiler
supported) PC based environment you can create and program laboratory
applications relying on your preferred development tools.
Example 1: Acquiring biosignal data with g.MOBIlab
In the first example the data for one biosignal channel are acquired. The
values are stored in a file called
demo.txt. A thread called
ThreadProc is created and started. This thread reads data from the
serial port and stores it to the file
demo.txt in ASCII format. The data can then be viewed using
g.BSanalyze or simply e.g. in Microsoft Excel. In this example ECG
data from channel 5 were acquired and stored on the Pocket PC.
void CTestapplDlg::OnbStartRead()
{
// Starts the acquisition on
g.MOBIlab
// the worker thread is created
// file demo.txt is created to hold acquired data
BOOL ret = FALSE;
GetDlgItem( IDC_Read )->EnableWindow(FALSE);
if(hDev == NULL)
{
MessageBox (L"No valid Handle",L"WARNING" ,MB_OK |
MB_ICONWARNING);
GetDlgItem( IDC_Read )->EnableWindow(TRUE);
return;
}
// create worker thread
hThread=CreateThread (NULL, 0,ThreadProc , this ,
CREATE_SUSPENDED,&_tid);
if (hThread == NULL)
{
MessageBox(L"Could not create thread",L"ERROR",MB_OK |
MB_ICONERROR);
GetDlgItem( IDC_Read )->EnableWindow(TRUE);
return;
}
// create storage file demo.txt
fid = fopen("demo.txt", "w" );
_isrunning = TRUE;
StartAcquisition(hDev); // start g.MOBIlab
ResumeThread(hThread); // start worker thread
return;
}
Example 2: Setting the Digital I/O
In the following example a red and
green light is switched on and off via 2 digital lines. If you press the
button "Red_Led" in the g.MOBIlab demo example then the following code
sequence is processed:
void
CTestapplDlg::OnbSetGreenLed()
{
// Set the green led on and
the red led off
// on the paradigma led box
BOOL ret = FALSE;
ret = SetDigitalOut(hDev,1,1); // set green led on
if(!ret)
{
ErrorHandling();
return;
}
ret =
SetDigitalOut(hDev,2,0); // set red led off
if(!ret)
{
ErrorHandling();
return;
}
} Highlights
- program your own EEG, ECG, EMG, EOG data recording system
on a Pocket PC and Notebook/desktop PC
- include your own sophisticated data processing algorithms
and add your customized functionality to g.MOBIlab
- send the acquired raw data or preprocessed biosignals
with GSM or WLAN
- debug your application directly on the Pocket PC and Notebook/desktop PC
connected to g.MOBIlab amplifier
Package includes
- device driver
API for g.MOBIlab
- electronic handbook
- sample code and tutorial
Prerequisites
- g.MOBIlab mobile biosignal data acquisition package
- Microsoft eMbedded Visual C++ /
Visual C++ development environment for PC
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