Features

•

Based on S2-LP radio

•

S2-LP narrow band ultra-low power sub-1 GHz transceiver tuned for 860 - 940

MHz frequency band

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Programmable RF output power up to +16 dBm

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Modulation schemes: 2-FSK, 2-GFSK, 4-FSK, 4-GFSK, OOK and ASK

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Air data rate from 0.1 to 500 kbps

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Ultra-low power consumption: 7 mA RX and 10 mA TX at +10 dBm

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IEEE 802.15.4g hardware packet support with whitening, FEC, CRC and dual

SYNC word detection

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RX and TX 128 byte FIFO buffers

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Support to wireless M-Bus

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Excellent performance of receiver sensitivity (up to -130 dBm)

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Automatic acknowledgement, retransmission and timeout protocol engine

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Compatible with STM32 Nucleo boards

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Compatible with Arduino UNO R3 connectors

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BALF-SPI2-01D3 IPD balun for matching network and harmonics filter

•

Sigfox compatible

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Sample firmware for P2P communication

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6LoWPAN compatible thanks to STM32Cube

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RoHS and WEEE compliant

Description

The X-NUCLEO-S2868A2 expansion board is based on the S2-LP ultra-low power

RF transceiver and operates in the 868 MHz ISM frequency band.

The X-NUCLEO-S2868A2 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 expansion board is compatible with ST morpho and Arduino UNO R3

connectors.

Product summary

Sub-1 GHz RF

expansion board based

on S2-LP radio for

STM32 Nucleo

X-NUCLEO-

S2868A2

Ultra-low power, high

performance, sub-1 GHz

transceiver

S2-LP

50 Ω nominal input/

conjugate match balun to

S2-LP, 868-930 MHz

with integrated harmonic

filter

BALF-

SPI2-01D3

Applications

ISM Radio

SubGHz

Sigfox

Sub-1 GHz 868 MHz RF expansion board based on S2-LP radio for

STM32 Nucleo

X-NUCLEO-S2868A2

Data brief

DB4048 - Rev 1 - December 2019

For further information contact your local STMicroelectronics sales office.

www.st.com