Getting started with the X-NUCLEO-S2915A1 Sub-1 GHz 915 MHz
RF expansion board based on S2-LP radio for STM32 Nucleo
October 2018
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User manual
Introduction
The X-NUCLEO-S915A1 expansion board is based on the S2-LP radio and
operates in the 915 MHz ISM frequency band.
The expansion board is compatible with ST morpho and Arduino UNO R3
connectors.
The X-NUCLEO-S2915A1 interfaces with the STM32 Nucleo microcontroller
via SPI connections and GPIO pins. You can change some of the GPIOs by
mounting or removing the resistors.
The boards are equipped with the following features:
•
On-board S2-LP, sub-1 GHz transceiver device
•
SPI EEPROM for saving parameters
•
860 to 930 MHz RF Front-End Module(power amplifier)
•
LED for user interface
•
Jumper at 3V3 for checking the current consumption of the expansion
board
Figure 1. Sub-1 GHz expansion board based on S2-LP for STM32
