User manual

RN-52-EK-UG
www.rovingnetworks.com Version 1.0 1/27/13 page 12
Advanced Information
5. From another phone, initiate a call to the smartphone that is paired with the RN-52-EK.
The A2DP stream pauses and the ringtone plays on the headset/microphone.
6. On your PC, identify the virtual serial port connection to the RN-52-EK UART USB port.
7. In a terminal emulator, open this port with the settings: 115,200 Kbps baud rate, 8 bits, no
parity, 1 stop bit.
8. Connect a jumper to header pins 3 and 5 (GPIO9) on J3. Refer back to Figure 1-5 on
page 8. The terminal emulator displays CMD, indicating that the RN52 module is in com-
mand mode and you can connect to it via the UART.
9. Try the following commands:
- D—Display settings
- H—Help
- Q—Connection status (a non-zero value indicates the device is connected)
10. To exit command mode, remove the jumper from GPIO9. The terminal emulator displays
the message END, indicating that the mdoule is no longer in command mode.
8.0 RESOURCES & RELATED DOCUMENTS
For more information, refer to the following sources:
• RN52 Bluetooth Audio Module Data Sheet
• Bluetooth Audio Module Command Reference User’s Guide
9.0 DOCUMENT REVISION HISTORY
9.1 Version 1.0
Initial release.