Augmented hearing and motion-sensing platform provides voice-over-BLE and sensor fusion in one module

The BlueCoin hearing and motion sensing platform from STMicroelectronics is now available from Mouser. BlueCoin is an integrated Bluetooth development system that incorporates low-power, high-performance 9-axis inertial and environmental sensors and a cluster of four digital MEMS microphones that are coupled with a powerful STM32F4 microprocessor. The device is an augmented hearing and motion-sensing reference platform compatible with STM32 ODE and ST’s Open Software Expansion Libraries. The ODE function pack for their MEMS microphones features advanced 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 can act as server and client simultaneously and can connect to any IoT or wireless sensor network. The ODE function pack uses sound source localization, beamforming, and acoustic echo cancellation to improve sound quality. Additional applications include PC control software compatibility to configure optimizations, beam direction, and source localization. The 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.