STMicroelectronics releases multi-sensor module for IoT and wearable designs

STMicroelectronics has announced SensorTile, a new sensor board that can be used as a sensing and connectivity hub for developing products such as wearables, smart-home, or Internet of Things (IoT) devices. The 13.5 mm x 13.5 mm module contains an 80 MHz STM32L4 microcontroller, a Bluetooth Low-Energy (BLE) transceiver with a miniature single-chip balun, a MEMS accelerometer, gyroscope, magnetometer, pressure sensor, and a MEMS microphone. SensorTile can be plugged to a host board, and when powered it automatically starts streaming inertial, audio, and environmental data to ST’s free BlueMS smartphone app.

The complete evaluation kit includes a cradle board, which contains a humidity and temperature sensor, a micro-SD card socket, a lithium-polymer (LiPo) battery and charger, and a plastic case that provides housing for the cradle, SensorTile, and battery combination. The kit also includes 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. A programming cable is also included.

The application program interface (API) is based on the STM32Cube Hardware Abstraction Layer and middleware components, including the STM32 Open Development Environment. The system is compatible with the Open Software eXpansion Libraries (Open.MEMS, Open.RF, and Open.AUDIO), as well as many third-party embedded sensing and voice processing projects. Example programs, including software for position sensing, activity recognition, and low-power voice communication, are available in source code.

The SensorTile kit (STEVAL-STLKT01V1) is available now from distributors or can be purchased directly from, priced at $89.00. For more information, visit