STMicroelectronics Sensor Node board

Avnet Silica partnered with ARM® mbed™, the IoT Device Platform, and developed Avnet Silica’s ST Sensor Node Board for smart sensing and cloud applications. This ARM mbed Enabled™ solution supports mbed OS 5, in combination with processing, sensing and connectivity products from STMicroelectronics like the STM32 ARM Cortex-M4 ultra-low-power microcontroller operating by USB power or through battery with Qi 1.0 wireless charging.

This Sensor Node board facilitates and speeds up development of smart sensor applications, providing several connectivity options, including Bluetooth Smart and sub-GHz 6LoWPAN. Besides mbed OS, the board also supports the STM32Cube ecosystem. Software demos and libraries are both provided for mbed OS and STM32Cube.

Features & benefits

• ST SensorTile module (13.5 x 13.5 mm) STEVAL-STLCS02V1 including:
  • Ultra-low-power ARM Cortex-M4 microcontroller - STM32L476JG
  • 3D Accelerometer and 3D Gyroscope – LSM6DSM
  • eCompass module – LSM303AGR
  • Barometer – LPS22HB
  • Digital microphone –  MP34DT04
  • 4.1 Bluetooth low energy – BlueNRG-MS
  • Bluetooth Low-Energy Balun Chip - BALF-NRG-01D3
  • Low noise voltage regulator - LD39115J18R
• Additional on-board connectivity:
  • ST Spirit sub-GHz module (13.5 x 11.5 mm) – SPSGRF-868
  • ST TESEO3 positioning IC supporting GPS/Galileo/Glonass/BeiDou/QZSS
  • ST Dynamic NFC/RFID Tag (2-Kbit EEPROM with dual interface) – M24SR02-Y
• Additional on-board sensors:
  • ST humidity and temperature sensor – HTS221
  • ST proximity and ambient light sensor – VL6180X
• Additional features:
  • mbed enabled board with embedded interface for programming and debugging (ST-LINK)
  • ST Qi 1.2.3 wireless battery charger receiver (STWL03 or STWL04)

Benefits

• Bluetooth Smart connectivity for easy connection with smartphones
• Sub GHz connectivity for long range communications
• NFC/RFID Dynamic Tag for easy pairing and configurations
• GNSS Receiver module for location service
• mbed Enabled board with integrated ST-LINK for programming and debugging
• Supporting ARM mbed OS 5 and STM32Cube Ecosystems

Block diagram

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