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USI® STM32™ Nucleo Expansion Board for LoRa™

I-NUCLEO-LRWAN1

Overview

USI^® in partnership with STMicroelectronics developed the LoRa^® expansion board for STM32 Nucleo (I-NUCLEO-LRWAN1). This board is an integrated solution allowing anyone to learn and develop solutions using LoRa^® and/or FSK/OOK technologies.

The I-NUCLEO-LRWAN1 features the USI^® LoRaWAN™ technology module, addressing low-cost and low-power wide area network (LPWAN), which comes with the embedded AT-command stack pre-loaded.
The I-NUCLEO-LRWAN1 can be controlled from an external host such as NUCLEO-L053 boards, running the I-CUBE-LRWAN embedded software. This software provides the means to set up a complete LoRaWAN™ node.
The I-NUCLEO-LRWAN1 is LoRaWAN™ class A certified and sustains the class C.
The I-NUCLEO-LRWAN1 includes the USI^® LoRaWAN™ module, Arduino™ connectors, a SMA connector, a 50 Ω antenna and three ST environmental sensors.
For more details about all the components of the LoRa^®-Middleware library, refer to the STM32 LoRa^®software expansion for STM32Cube user manual (UM2073).
The I-NUCLEO-LRWAN1 is supplied by a third party not affiliated to ST. For complete and latest information, refer to the third party GitHub page https://github.com/USIWP1Module/USI_I-NUCLEO-LRWAN1.

Main features

USI^® low-cost, LPWAN module supporting LoRa^® technology:
- ST ultra-low-power STM32L052T8Y6 MCU, Cortex^®-M0+ based with 64 Kbytes of Flash memory, 8 Kbytes of RAM, 2 Kbytes of EEPROM, T-RNG
- Semtech SX1272 radio transceiver supporting LoRa^®, FSK, GFSK, MSK, GMSK and OOK modulation
- High sensitivity down to -137 dBm
- 860 MHz to 1020 MHz frequency range
- 14 dBm to 20 dBm output power
- 2.0 V to 3.6 V voltage range
- -40°C to +85°C temperature range
- Embedded 32 kHz and 32 MHz crystals
- USART communication interface
ST accelerometer and magnetometer sensor (LSM303AGR)
ST relative humidity and temperature sensor (HTS221)
ST pressure sensor (LPS22HB)
Arduino™ connectors
SMA connector (antenna included in the kit)

Design Files

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It is your responsibility to test the circuit yourself and determine its suitability for you. EEWorld will not be liable for direct, indirect, special, incidental, consequential or punitive damages arising from any cause or anything connected to any reference design used.

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Update:2025-06-26 14:54:49

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