User's Manual

BL-521 r7 QSG.doc © Copyright Brainboxes Limited 2003 Page 7 of 7
Configuration changes made in this menu will ONLY be applied when option 4 from the previous menu is
selected.
2.3.5. Changing data bits.
Unfortunately this setting cannot be changed. Only the 8 data bit format is supported.
2.3.6. Changing number of stop bits.
After selecting option 4 from the main menu, the following menu is displayed.
Selecting 0 immediately returns you to the previous menu without storing any changes; selecting any other option
will store the appropriate configuration selection.
If you power down your BL-521 at this point, the configuration changes will be discarded.
Configuration changes made in this menu will ONLY be applied when you select option 4 (Apply COMM settings)
from the previous menu.
2.3.7. Applying configuration settings.
Selecting option 4 from the “Modify COMM menu” causes the currently selected serial port configuration options
to be applied. This should be with immediate effect. If you wish to further interact with the BL-521, you will need
to reconfigure your terminal applications settings to reflect those at which the BL-521 is now operating. Most
Bluetooth options are applied immediately.
2.3.8. Handshaking
The version of product in this box supports RTS/CTS handshaking.
2.3.9. Pin Number
The Factory set PIN number is 1234. This can be changed from the Bluetooth configuration menu. The Factory
set security state of BL-521 is Mode3 or High. This means the device must be bonded (paired) before any
Bluetooth data can be transferred.
3. Connecting via Bluetooth
Connecting to your BL-521 will vary depending on your application, but will usually consist of 3 Steps.
1 – Configuring the communications parameters.
2 – Physically connecting BL-521 to your device.
3 – Connecting to BL-521 from a remote device via Bluetooth and transferring data.
3.1. Configuring the communications parameters.
You must match your device communication parameters and those in BL-521 as described above.