STMicroelectronics has announced the 13.5mm x 13.5mm sensor board named SensorTile, a very small turnkey sensor board containing a MEMS accelerometer, gyroscope, magnetometer, pressure sensor, MEMS microphone and the on-board low-power STM32L4 microcontroller. The board can be used for developing products such as wearables, gaming accessories, and smart-home or Internet-of-Things (IoT) devices.
SensorTile uses Bluetooth LE transceiver including a miniature single-chip balun on-board. SensorTile can be simply plugged to a host board, and when powered it immediately starts streaming inertial, audio, and environmental data to ST’s BlueMS smartphone app that can be downloaded free of charge from popular app stores.
To ensure easier development of software STMicroelectronics is offering Application Program Interface (API) based on the STM32Cube Hardware Abstraction Layer and middleware components, including the STM32 Open Development Environment. The system is fully compatible with the Open Software eXpansion Libraries (Open.MEMS, Open.RF, and Open.AUDIO), and other such third-party embedded sensing and voice-processing projects. Many example programs available in source code offer a starting point for evaluation and customization, including software for position sensing, activity recognition, and low-power voice communication.
The full kit/pack includes a cradle board, which carries the 13.5mm x 13.5mm SensorTile core system in standalone or hub mode containing a humidity and temperature sensor, a micro-SD card socket, and lithium-polymer battery (LiPo) charger, LiPo rechargeable battery and a plastic case that provides a convenient housing for the cradle, SensorTile, and battery combination.
Also part of the SensorTile kit is a cradle/expansion board with an analog audio output, a micro-USB connector, and an Arduino-like interface that can be plugged into any STM32 Nucleo board to expand developers’ options for system and software development. A programming cable is also included.
The SensorTile kit (STEVAL-STLKT01V1) is available now from distributors or can be purchased directly from st.com, priced at $89.00.
Main features of SensorTile core system:
· LSM6DSM 3D accelerometer + 3D gyroscope
· LSM303AGR 3D Magnetometer + 3D accelerometer
· LPS22HB pressure sensor/barometer
· MP34DT04 digital MEMS microphone
· STM32L476 microcontroller
· BlueNRG-MS network processor with integrated 2.4GHz radio