Bluetooth® 5 Dual Mode Audio Module – LM746

LM offers firmware development support to assist with bespoke solutions. The LM746 Multimedia Module comes with a range of firmware for quick deployment. Firmware can be modified to meet your unique requirements or used for evaluation purposes.

Available Applications

The Headset application is Bluetooth 5 complaint, supporting the Headset Profile (HSP), Advance Audio Distribution Profile (A2DP) and Audio/Video Remote Control Profile (AVRCP). This defines the way the LM746 receives audio streaming from a connected device. It also enables basic control functionality such as play-pausing music, answering-rejecting calls and adjusting the volume. This makes it the perfect solution for manufacturing wireless head phones. Latest firmware version: 74XLM_SINK_0202 The AT Commands Structure (0103) application contains the Audio Gateway Hands Free Profile (AGHFP). AGHFP allows the LM746 module to be the source of the audio stream for the connected device to output. The application also provides AT Commands for Bluetooth and Bluetooth low energy connections. Serial data is transmitted with the Serial Port Profile (SPP) and the Serial over GATT (Bluetooth low energy service). Users can read, write or modify data on the connected devices by utilising simple AT commands. Latest firmware version: 74XLM_ATSRC_0103 The AT Commands Structure (0102) application contains the Audio Gateway Hands Free Profile (AGHFP). AGHFP allows the LM746 module to be the source of the audio stream for the connected device to output. The application also provides AT Commands for the Bluetooth connection. Serial data is transmitted with the Serial Port Profile (SPP). Users can read, write or modify data on the connected devices by utilising simple AT commands. Firmware version: 74XLM_ATSRC_0102  

Getting Started

Applications are evaluated with the LM558 Multimedia Development Kit.