User's Manual

CHAPTER FIVE - CONECTIVITY

connected your PL3000, you can use ‘Internet Explorer’ for testing the just

established GPRS connection. A double-tap on the ‘Internet Explorer’ icon on the

desktop of the Windows CE shell opens the browser on the display.

BLUETOOTH

By default the Bluetooth radio is turned off on your

PL3000. When you turn on the radio, other Bluetooth

devices can discover your PL3000. However, your

device does not publish any service by default, so it cannot be connected to

through the Bluetooth. In fact, quite probable use for Bluetooth connectivity on your

PL3000 is to connect it to another device that provides some service for the

program running on your PL3000.

If Bluetooth is used as a part of communication aid in the Windows CE

application, the easiest way to build the required functionality is to build it on

Bluetooth’s RFCOMM communication, of course depending on the required

functionality. On the PL3000, ActiveSync is that kind of application that works out

of the box above Bluetooth’s RFCOMM protocol layer, assuming that you have

assigned RFCOMM to some virtual serial port (COM port) for ActiveSync in the

‘Bluetooth Device Properties’ applet.

Hint: Windows CE has two application programming mechanisms to use

Bluetooth connectivity above RFCOMM protocol: Winsock API and virtual

serial ports API. The preferred method is to use Winsock API to access

Bluetooth stack for the simple reason that the socket interface is well

known abstraction of the programming interface above transport protocol

layer. Furthermore, the Winsock version 2.2 on the PL3000 offers some

easiness for Bluetooth stack configuration through the ‘setsockopt’ and

‘getsockopt’ calls.

Turning on/off Bluetooth Radio

The first step to bring Bluetooth into service on the PL3000 is to turn on its

radio. In the similar way you can shut down the Bluetooth.

Before you begin, open the ‘Bluetooth Device Properties’ control panel

applet (see the section ‘Control Panel’ on page 30).

To turn on the Bluetooth radio:

1. Tap on the ‘Hardware‘ tab to open the page where you can switch on the

radio

2. Tap on the ’Turn ON Bluetooth’ button to switch on the radio; you may

wait a moment before the radio and the Bluetooth stack are up and

running. When the radio is on, the button text is changed to ‘Turn OFF