User manual

RN-52-EK-UG
www.rovingnetworks.com Version 1.0 1/27/13 page 7
Advanced Information
The default configuration for the Bluetooth device is:
• Bluetooth slave mode
• Keyboard default authentication mode (no pin code required)
• Serial port 115,200 Kbps baud rate, 8 bits, no parity, 1 stop bit
• Serial port flow control disabled
• Low power mode off
You configure the device by putting it into command mode and sending ASCII commands over
a serial port. Once you change the configuration parameters, they persist until you change them
or perform a factory reset.
You need a terminal emulator to complete the setup.
5.2 Configure the Module Using over the UART
Set up the RN-52-EK hardware as described in “Hardware Setup” on page 5. With the Bluetooth
device connected and powered on, run a terminal emulator and open the COM port to which the
cable is connected. The terminal emulator’s communication settings should be the default serial
port settings.
5.3 Enter Command Mode
The RN52 module enters command mode when GPIO09 goes low. The RN52 module leaves
command mode and enters data mode when GPIO09 goes high. With the RN-52-EK evaluation
board, you use a jumper to switch between command and data modes.
Launch a terminal emulator and specify the adapter’s default settings. Figure 1-4 shows the
serial port settings dialog box for TeraTerm (open this dialog box by choosing Setup > Serial
Port).
NOTICE
You can only configure the Bluetooh audio module locally using your computer’s serial
port. You cannot configure the module remotely over the Bluetooth link.
Note: Roving Networks suggests using either the TeraTerm (Windows OS) or CoolTerm
(Mac OS-X) terminal emulator program.
Note: You can use local configuration at any time when the device does NOT have a Blu-
etooth connection, as well as under certain conditions. If the device is in configura-
tion mode and a connection occurs, the device exits configuration mode and data
passes back and forth from the remote device.