Laird BTM510 Quick Start Manual

Laird BTM510 Quick Start Manual

Development kit – a2dp and avrcp
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BTM510/511 Development Kit – A2DP and AVRCP
Quick Start Guide
A2DP S
AVRCP C
INK

Introduction

This example will demonstrate how to use the BTM511 as an A2DP stereo audio sink and AVRCP controller.
An A2DP source is required. Most smartphones are able to act as a source but please check with your device
manufacturer for information on your specific device.

Requirements

BTM511 development board
USB cable (A-B)
Windows computer
Terminal software such as Ezurio Terminal
Bluetooth A2DP source (such as a Bluetooth mobile phone or PC with media player software)
Speakers or headphones with 3.5 mm jack
FTDI VCP driver
BTM51x firmware 18.1.3.0 or above
Note:
Not all phones and computers support Bluetooth A2DP. Check with the manufacturer for A2DP
support.
The development board USB connector provides both power to and serial communications with the module.
You can use the Laird-provided terminal program (Ezurio Terminal) or your own preferred terminal program.
A set of stereo speakers or headphones should be plugged into the stereo out socket on the development
board using a 3.5 mm audio jack.
Americas: +1-800-492-2320 Option 3
Europe: +44-1628-858-940
Hong Kong: +852 2923 0610
www.lairdtech.com/wireless
E
ONTROL
XAMPLE
1
v1.0
Laird Technologies

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Summary of Contents for Laird BTM510

  • Page 1 The development board USB connector provides both power to and serial communications with the module. You can use the Laird-provided terminal program (Ezurio Terminal) or your own preferred terminal program. A set of stereo speakers or headphones should be plugged into the stereo out socket on the development board using a 3.5 mm audio jack.
  • Page 2 BTM510/511 Development Kit – A2DP and AVRCP Application Note Device Setup To set up the device, follow these steps: 1. Install the FTDI VCP drivers on your PC. 2. If not already installed, install your preferred terminal program. 3. Connect the USB cable to the computer and development board. Ensure that the development board switch is set to USB.
  • Page 3 BTM510/511 Development Kit – A2DP and AVRCP Application Note Because different devices handle pairing in different ways, it is not possible to provide step-by-step instructions for a specific device. Typically, you need to go to the device’s settings screen and select Bluetooth;...
  • Page 4 BTM510/511 Development Kit – A2DP and AVRCP Application Note Figure 3: Current sampling frequency In this example: 44100 Refers to 44100 khz Indicates that an internal codec is being used Figure 4: Audio output gain and connection status at+god Control the audio output gain...
  • Page 5 BTM510/511 Development Kit – A2DP and AVRCP Application Note Figure 5: AVRCP Commands at+avc45 Stop media playback at+avc44 Start playback Figure 6: Skip back and playback commands at+avc4c Skip back at+avc46 Pause playback Note: Not all commands may be supported by all devices.
  • Page 6 BTM510/511 Development Kit – A2DP and AVRCP Application Note Figure 7: Disconnection commands Resources FTDI Driver: http://www.ftdichip.com/Drivers/VCP.htm Ezurio terminal: http://www.lairdtech.com/zips/Bluetooth%20Terminal%20Download.zip Support: http://www.lairdtech.com/Products/Wireless-M2M-and-Telematics-Solutions/Bluetooth-Module/ BTM511 User Manual: http://www.lairdtech.com/WorkArea/linkit.aspx?LinkIdentifier=id&ItemID=5114 EVISION ISTORY Revision Date Description Initiated By 20 June 2013 Initial Release Jonathan Kaye...

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Btm511

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