Design Win

Wireless Bridge 868 MHz




The STEVAL-IDI004V2 wireless bridge evaluation kit is an Internet of Things (IoT) Home Bridge which supports the Wi-Fi, Sub-GHz, Bluetooth and NFC communication protocols. The device is suitable for various smart home, smart city and industrial applications.

The system uses an STM32F103 microcontroller as a bridge between the various communications modules. The Wi-Fi, Bluetooth and Sub-GHz certified modules are connected through a UART interface to the STM32 microcontroller. The NFC transceiver module is connected through an SPI interface.

  • 特徴

    • STM32F103 microcontroller as bridge between communication protocols
    • SPWF01SA.11 module for Wi-Fi communication:
      • 2.4 GHz IEEE 802.11 b/g/n Wi-Fi
      • Pre-certified RF module (FCC, IC, CE)
      • Integrated TCP/IP
      • AT commands
      • TLS/SSL for end-to-end security
      • Over-the-air firmware updates
    • SP1ML-868 module for Sub-GHz RF communication:
      • 868 MHz ETSI-certified module
      • Based on Sub-GHz SPIRIT1 transceiver, STM32L1 ULP MCU and balun (BALF-SPI-01D3)
      • Chip antenna
      • Simple AT commands
    • SPBT2632 module for Bluetooth communication:
      • Bluetooth® Classic 3.0 version
      • AT commands
      • CE, FCC, IC, TELEC certified
      • Low-power mode supported
    • Supports NFC communication with the CR95HF and 13.56 MHz inductive etched antenna
    • Configuration using a PC GUI (by request) through USB VCOM
    • Android application to access sensor node data via Bluetooth on request
    • Works as a root node for the mesh network using sensor node evaluation board (part number STEVAL -IDI002V2/3V2)
    • RoHS compliant