Avnet Silica ST Sensor Node

Powered by ultra compact STM Sensor Tile - ARM mbed Enabled

Copyright:(C)2017 Avnet Silica company


Avnet Silica, official partner of ARM Technology, developed an ARM® mbed Enabled™ Sensor Node board delivering the low power operation and secure connectivity required for Internet of Things (IoT), smart sensing and cloud applications.

Avnet Silica has combined best-in-class processing, sensing, security and connectivity from STMicroelectronics with the ARM® mbed™ IoT Device Platform, which provides a complete solution including an advanced OS to run hardware, device management in the cloud and advanced security.

Powered by ST’s ultra-low-power STM32L4 microcontroller, the Sensor Node board enables quick development of smartsensor applications that can make use of several connectivity options. Choices include Bluetooth LE connectivity, which enables an easy connection with smartphones, and sub-GHz 6LoWPAN connectivity for long-range communications. Key hardware on the board includes the highly integrated ST SensorTile module, which integrates the ultra-low-power STM32L4 ARM® Cortex®-M4 microcontroller, plus ST’s very low-power BlueNRG-MS Bluetooth low energy (BLE) single mode network processor and ST TESEO III GNSS receiver, together with a wide selection of ST’s sensing devices like accelerometer, gyroscope, magnetometer, barometer and microphone plus STSAFE-A100, a highly secure solution which acts as a secure element providing authentication and data management services to the local host.

The Sensor Node board also offers some additional onboard sensors from ST that provide support for humidity, temperature, proximity and ambient light.

In addition to ARM mbed OS 5, the board also supports STM32Cube middleware and is further supported by software demos and libraries provided for both mbed OS and STM32Cube.


  • Bluetooth LE connectivity for easy connection with smartphones
  • Sub GHz connectivity for long range communications
  • NFC/RFID Dynamic Tag for easy pairing and configurations
  • GNSS Receiver IC for location services
  • STSAFE-A100 secure element ensuring integrity and confidentiality of data communications
  • mbed enabled board with integrated ST-LINK for programming and debugging
  • Supporting ARM mbed OS 5 and STM32Cube Ecosystems


  • STM SensorTile module – 13 x 13 mm module including:
    • Ultra-low-power STM 32 L4 Arm Cortex M4 Mcu
    • Accelerometer
    • Gyroscope
    • Magnetometer
    • Barometer
    • Microphone
    • Bluetooth Smart – BlueNRG-MS
  • Additional on-board connectivity
    • STM SPSGRF-888 Spirit sub-ghz module (13.5 x 11,5 mm)
    • STM TESEO-LIV3 GNSS module (9,7 x 10,1 mm) supporting GPS/Galileo/Glonass/BeiDou/QZSS
    • STM M24SR02 Dynamic NFC/RFID Tag (2-Kbit EEPROM with dual interface)
  • Additional on-board sensors
    • STM humidity and temperature sensor
    • STM proximity and ambient light sensor VL6180x , gestures
  • Additional features
    • mbed enabled board with embedded interface for programming and debugging (ST-LINK)
    • STM Qi 1.0 wireless battery charger
    • STSAFE-A100 Security Module
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