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The USI/ST I-NUCLEO-LRWAN1 is an Arduino-compatible expansion board for STM32 Nucleo microcontroller boards.

Technical data

  • USI WM-SG-SM-42 LoRa module (UART)
    • ST STM32L052 MCU
      • Arm Cortex-M0+ CPU
    • Semtech SX1272 LoRa transceiver


Note: This Nucleo Shield seems incompatible with ArPi600 adapter board - on at least NanoPi K2 and Pine64 boot problems have been observed while the Shield is attached.

The default UART settings are 115200n8.


Using a UART of your choice, connect RX/TX to the Arduino header via jumper cables, and 3.3V and GND to the SWD connectors (JP6 pins 1, 3) or Arduino connectors.

See also