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Emerging Display Technologies

New Hearing and Motion Sensing Platform is Bluetooth Integrated

22 August 2017

Source: MouserSource: Mouser

Mouser Electronics is now stocking the BlueCoin hearing and motion sensing platform from STMicroelectronics (ST). BlueCoin is a Bluetooth®-integrated development system that incorporates low-power, high-performance nine-axis inertial and environmental sensors and a cluster of four digital MEMS microphones that are coupled with a powerful STM32F4 microprocessor.

ST’s BlueCoin is an augmented hearing and motion-sensing reference platform compatible with STM32 Open Development Environment (ODE) and ST’s Open Software Expansion Libraries. The ODE function pack for ST’s MEMS microphones features audio processing and audio output. STM32Cube expansion pack software allows voice transmission over a Bluetooth low-energy connection, making it ideal for audio entertainment, voice-controlled TV remotes and wearable applications. The board acts as a server and client simultaneously and can connect to any internet of things (IOT) or wireless sensor network.

The ODE function pack uses sound source localization, beamforming and acoustic echo cancellation to improve sound quality. Additional applications for this product are: control software compatibility to configure optimizations, beam direction and source localization.

The BlueCoin board offers sensor fusion through integrated inertial modules, a Nano pressure sensor and an array of four MEMS microphones with a low-power ARM-based STM32 F4 series microcontroller. An ST BlueNRG-MS network processor provides the Bluetooth low-energy connectivity, while an STBC03 lithium-ion battery charger IC provides power management on the board.

To learn more about this product, visit Mouser.

To contact the author of this article, email Siobhan.Treacy@ieeeglobalspec.com


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