Introduction
The ultra-low-power STM32 and LoRa® Nucleo pack (P-NUCLEO-LRWAN1) is a kit based on a NUCLEO-L073RZ board and
on a SX1272MB2DAS LoRa® RF expansion board from Semtech corporation. The expansion board includes the low-power
transceiver SX1272 which features the long-range modem LoRa®. This modem provides high-performance LoRa® modulation
as well as OOK/FSK modulation. The P-NUCLEO-LRWAN1 Nucleo pack is compatible with the I-CUBE-LRWAN1 Expansion
Package, a certified middleware stack, compliant with the LoRaWAN™ specifications V1.0.2. It provides support for bidirectional
end-devices in Class-A, Class-B and Class-C protocols and for end-devices activation either through over-the-air activation
(OTAA) or activation by personalization (ABP).
This document describes the hardware environment required to build the system and to run applications based on the P-
NUCLEO-LRWAN1 Nucleo pack.
For more details, refer to the STM32 LoRa® software expansion for STM32Cube databrief (DB2961).
Figure 1. P-NUCLEO-LRWAN1 Nucleo pack
Picture is not contractual.
Getting started with the ultra-low-power STM32 and LoRa® Nucleo pack
UM2084
User manual
UM2084 - Rev 3.0 - July 2018
For further information contact your local STMicroelectronics sales office.
www.st.com
1Getting started
The NUCLEO-L073RZ board is Arm® Mbed™ compliant.
Note: Arm and Mbed are registered trademarks or trademarks of Arm Limited (or its subsidiaries) in the US and/or
elsewhere.
1.1 System architecture
The P-NUCLEO-LRWAN1 Nucleo pack is composed of two boards as shown in Figure 2. P-NUCLEO-LRWAN1
Nucleo pack system architecture):
• the NUCLEO-L073RZ board where the stack runs
• the SX1272MB2DAS LoRa expansion board from Semtech corporation, where a low-power RF transceiver
including a LoRa modem is mounted
Figure 2. P-NUCLEO-LRWAN1 Nucleo pack system architecture
NUCLEO-L073RZ
Pass through
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DIO0
DIO1
DIO2
DIO3
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NSS
MOSI
MISO
SCK
GND
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RESET
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GND
GND
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3.3V
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SX1272MB2DAS
UM2084
Getting started
UM2084 - Rev 3.0 page 2/10
