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ST Unveils Turnkey Sensor Boards to Ease IoT and Wearable Design
Published2016.12.08 16:02Leverage a robust open software ecosystem to accelerate time to market.
STMicroelectronics' new SensorTile, measuring 13.5mm x 13.5mm, is the smallest turnkey sensor board of its kind today. It integrates a MEMS accelerometer and gyroscope, a magnetometer, a pressure sensor, and a MEMS microphone. Combined with the onboard low-power STM32L4 microcontroller, it can be used as a sensing and connectivity hub for wearables, gaming accessories, smart homes, and Internet-of-Things (IoT) devices.
The SensorTile features a complete Bluetooth® Low-Energy (Bluetooth LE) transceiver with a compact onboard single-chip balun, as well as a variety of system interfaces that enable its use as a sensor fusion hub or firmware development platform. Simply plugged into a host board, it powers up and immediately begins streaming inertial, audio, and environmental data to the ST BlueMS smartphone app. This app is available for free download from the App Store.
Software development is quick and easy with a vast API (Application Program Interface) ecosystem based on the STM32 Open Development Environment, the STM32Cube Hardware Abstraction Layer (HAL), and middleware components.
The system is fully compatible with the open software eXpansion libraries (Open.MEMS, Open.RF, Open.AUDIO) and embedded sensing and voice processing projects from many partners. Most example programs are provided as source code, allowing for easy evaluation and customization. Software for position sensing, activity recognition, and low-power voice communication is included.
This complete kit includes a cradle board that allows the 13.5mm x 13.5mm SensorTile core system to operate standalone or in hub mode, and can be used as a reference design. Despite its small size, the board is fully functional, with integrated humidity and temperature sensors, a microSD card socket, and a LiPo (Lithium-Polymer) battery charger.
In comparison, the layout is implemented simply, demonstrating how easy it is to design a wearable prototype with customized additional features using the SensorTile core system. It also includes a plastic case that easily houses the cradle, SensorTile, and battery, along with a LiPo rechargeable battery.
This SensorTile kit includes a cradle/expansion board with an Arduino-compatible interface that plugs into any STM32 Nucleo board, as well as an analog audio output and a micro-USB connector, to expand system and software development options. A programming cable is also provided.
The SensorTile Kit (STEVAL-STLKT01V1) is available now through distributors or st.com, priced at $89.
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