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Battery monitoring is essential to ensure continuity of operations in a data center or networking center. With a battery monitoring system, a failing battery can be quickly diagnosed and replaced before it drains the remaining good batteries in the string. This monitoring solution will prolong the life of the remaining batteries as well as help to make sure any power outage to a facility can be properly handled by the UPS system.  Battery monitoring is typically implemented with a wireless Data Collection Module (DCM) connected to the batteries.  The wireless DCM collects information from the batteries and sends it wirelessly to a battery monitoring unit which stores the data for further usage and analysis.

ST’s product portfolio offers a wide range of products for remote data collection modules as well as for the battery monitoring system. Power management, wireless connectivity, microcontrollers and environmental sensors are among the key products offered by ST to help designs create innovative, robust solutions.

Part Number
Description
STEVAL-FKI915V1 Sub-1GHz transceiver development kit based on S2-LP Quick view

Key Features

  • S2-LP narrow band ultra-low power Sub-1GHz transceiver in a standalone RF module tuned for 860-940 MHz frequency bands with external power amplifier
  • STM32 Nucleo-64 development board with STM32L152RE MCU
  • Suitable for wireless M-Bus systems
  • Suitable for SigFox applications
  • Associated S2-LP development kit including, documentation, firmware for STM32L and GUI
  • Programmable RF output power up to +27 dBm
  • Modulation schemes: 2-FSK, 2-GFSK, 4-FSK, 4-GFSK, OOK, and ASK
  • Air data rate from 0.3 to 500 kbps
  • Excellent performance of receiver sensitivity (up to -130 dBm)
  • Low duty cycle RX/TX operation mode
  • Automatic acknowledgement, retransmission and timeout protocol engine
  • SPI interface for microcontroller
  • USB interface
  • RoHS compliant

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FEATURED RESOURCES

Schematics BOM Gerber
X-NUCLEO-IDS01A5 Sub-1 GHz RF expansion board based on the SPSGRF-915 module for STM32 Nucleo Quick view

Key Features

  • STM32 Nucleo expansion board based on the SPSGRF-915
  • X-NUCLEO-IDS01A5 contains FCC and IC certified module SPSGRF-915 (FCC ID: S9NSPSGRF and IC: 8976C-SPSGRF)
  • SPGRF-915:
    • 915 MHz FCC and IC certified module based on low-power, low-rate sub-1 GHz SPIRIT1 transceiver
    • Integrated Balun (BALF-SPI-01D3)
    • Chip antenna
  • Compatible with STM32 Nucleo boards
  • Equipped with Arduino UNO R3 connectors
  • Scalable solution; can cascade multiple boards for larger systems
  • Example firmware for point-to-point communication, compatible with STM32Cube firmware
  • RoHS compliant

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FEATURED RESOURCES

Schematics BOM Gerber
X-NUCLEO-IDS01A4 Sub-1 GHz RF expansion board based on the SPSGRF-868 module for STM32 Nucleo Quick view

Key Features

  • STM32 Nucleo expansion board based on the SPSGRF-868
  • SPGRF-868 characteristics:
    • 868 MHz ETSI-certified module based on low power, low data-rate sub-1 GHz SPIRIT1 transceiver
    • Integrated Balun (BALF-SPI-01D3)
    • Chip antenna
  • Compatible with STM32 Nucleo boards
  • Equipped with Arduino UNO R3 connectors
  • Scalable solution; capable of cascading multiple boards for larger systems
  • Example firmware for point-to-point communication, compatible with STM32Cube firmware
  • RoHS compliant

Show More

IMAGE

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Image

FEATURED RESOURCES

Schematics BOM Gerber
STEVAL-FKI433V2 Sub-1GHz (430-470 MHz) transceiver development kit based on S2-LP Quick view

Key Features

  • S2-LP narrow band ultra-low power sub-1GHz transceiver in a standalone RF module tuned for 430-470 MHz frequency bands
  • STM32 Nucleo-64 development board with STM32L0 MCU
  • Suitable for wireless M-Bus systems
  • Associated S2-LP development kit including, documentation, firmware for STM32L and GUI
  • Programmable RF output power up to +16 dBm
  • Modulation schemes: 2-FSK, 2-GFSK, 4-FSK, 4-GFSK, OOK, and ASK
  • Air data rate from 0.3 to 500 kbps
  • Ultra-low power consumption:
    • 6.7 mA RX
    • 10 mA TX at +10 dBm
  • Excellent performance of receiver sensitivity (up to -130 dBm)
  • Low duty cycle RX/TX operation mode
  • Automatic acknowledgement, retransmission and timeout protocol engine
  • SPI interface for microcontroller
  • USB interface
  • RoHS compliant

Show More

IMAGE

Image
Image

FEATURED RESOURCES

Schematics BOM Gerber
STEVAL-FKI868V2 Sub-1GHz (860-940 MHz) transceiver development kit based on S2-LP Quick view

Key Features

  • S2-LP narrow band ultra-low power sub-1GHz transceiver in a standalone RF Module tuned for 860-940 MHz frequency bands
  • STM32 Nucleo-64 development board with STM32L0 MCU
  • Suitable for Wireless M-Bus systems
  • Associated S2-LP development kit including, documentation, firmware for STM32L and GUI
  • Programmable RF output power up to +16 dBm
  • Modulation schemes: 2-FSK, 2-GFSK, 4-FSK, 4-GFSK, OOK, and ASK
  • Air data rate from 0.3 to 500 kbps
  • Ultra-low power consumption:
    • 6.7 mA RX
    • 10 mA TX @ +10 dBm
  • Excellent performance of receiver sensitivity (up to -130 dBm)
  • Low duty cycle RX/TX operation mode
  • Automatic acknowledgement, retransmission, and timeout protocol engine
  • SPI interface for microcontroller
  • USB interface
  • RoHS compliant

Show More

IMAGE

Image
Image

FEATURED RESOURCES

Schematics BOM Gerber
Part Number
STEVAL-FKI915V1

Sub-1GHz transceiver development kit based on S2-LP

Key Features

  • S2-LP narrow band ultra-low power Sub-1GHz transceiver in a standalone RF module tuned for 860-940 MHz frequency bands with external power amplifier
  • STM32 Nucleo-64 development board with STM32L152RE MCU
  • Suitable for wireless M-Bus systems
  • Suitable for SigFox applications
  • Associated S2-LP development kit including, documentation, firmware for STM32L and GUI
  • Programmable RF output power up to +27 dBm
  • Modulation schemes: 2-FSK, 2-GFSK, 4-FSK, 4-GFSK, OOK, and ASK
  • Air data rate from 0.3 to 500 kbps
  • Excellent performance of receiver sensitivity (up to -130 dBm)
  • Low duty cycle RX/TX operation mode
  • Automatic acknowledgement, retransmission and timeout protocol engine
  • SPI interface for microcontroller
  • USB interface
  • RoHS compliant

Show More

IMAGE

Image
Image

FEATURED RESOURCES

Schematics BOM Gerber
X-NUCLEO-IDS01A5

Sub-1 GHz RF expansion board based on the SPSGRF-915 module for STM32 Nucleo

Key Features

  • STM32 Nucleo expansion board based on the SPSGRF-915
  • X-NUCLEO-IDS01A5 contains FCC and IC certified module SPSGRF-915 (FCC ID: S9NSPSGRF and IC: 8976C-SPSGRF)
  • SPGRF-915:
    • 915 MHz FCC and IC certified module based on low-power, low-rate sub-1 GHz SPIRIT1 transceiver
    • Integrated Balun (BALF-SPI-01D3)
    • Chip antenna
  • Compatible with STM32 Nucleo boards
  • Equipped with Arduino UNO R3 connectors
  • Scalable solution; can cascade multiple boards for larger systems
  • Example firmware for point-to-point communication, compatible with STM32Cube firmware
  • RoHS compliant

Show More

IMAGE

Image
Image

FEATURED RESOURCES

Schematics BOM Gerber
X-NUCLEO-IDS01A4

Sub-1 GHz RF expansion board based on the SPSGRF-868 module for STM32 Nucleo

Key Features

  • STM32 Nucleo expansion board based on the SPSGRF-868
  • SPGRF-868 characteristics:
    • 868 MHz ETSI-certified module based on low power, low data-rate sub-1 GHz SPIRIT1 transceiver
    • Integrated Balun (BALF-SPI-01D3)
    • Chip antenna
  • Compatible with STM32 Nucleo boards
  • Equipped with Arduino UNO R3 connectors
  • Scalable solution; capable of cascading multiple boards for larger systems
  • Example firmware for point-to-point communication, compatible with STM32Cube firmware
  • RoHS compliant

Show More

IMAGE

Image
Image

FEATURED RESOURCES

Schematics BOM Gerber
STEVAL-FKI433V2

Sub-1GHz (430-470 MHz) transceiver development kit based on S2-LP

Key Features

  • S2-LP narrow band ultra-low power sub-1GHz transceiver in a standalone RF module tuned for 430-470 MHz frequency bands
  • STM32 Nucleo-64 development board with STM32L0 MCU
  • Suitable for wireless M-Bus systems
  • Associated S2-LP development kit including, documentation, firmware for STM32L and GUI
  • Programmable RF output power up to +16 dBm
  • Modulation schemes: 2-FSK, 2-GFSK, 4-FSK, 4-GFSK, OOK, and ASK
  • Air data rate from 0.3 to 500 kbps
  • Ultra-low power consumption:
    • 6.7 mA RX
    • 10 mA TX at +10 dBm
  • Excellent performance of receiver sensitivity (up to -130 dBm)
  • Low duty cycle RX/TX operation mode
  • Automatic acknowledgement, retransmission and timeout protocol engine
  • SPI interface for microcontroller
  • USB interface
  • RoHS compliant

Show More

IMAGE

Image
Image

FEATURED RESOURCES

Schematics BOM Gerber
STEVAL-FKI868V2

Sub-1GHz (860-940 MHz) transceiver development kit based on S2-LP

Key Features

  • S2-LP narrow band ultra-low power sub-1GHz transceiver in a standalone RF Module tuned for 860-940 MHz frequency bands
  • STM32 Nucleo-64 development board with STM32L0 MCU
  • Suitable for Wireless M-Bus systems
  • Associated S2-LP development kit including, documentation, firmware for STM32L and GUI
  • Programmable RF output power up to +16 dBm
  • Modulation schemes: 2-FSK, 2-GFSK, 4-FSK, 4-GFSK, OOK, and ASK
  • Air data rate from 0.3 to 500 kbps
  • Ultra-low power consumption:
    • 6.7 mA RX
    • 10 mA TX @ +10 dBm
  • Excellent performance of receiver sensitivity (up to -130 dBm)
  • Low duty cycle RX/TX operation mode
  • Automatic acknowledgement, retransmission, and timeout protocol engine
  • SPI interface for microcontroller
  • USB interface
  • RoHS compliant

Show More

IMAGE

Image
Image

FEATURED RESOURCES

Schematics BOM Gerber
00 Files selected for download

Technical Documentation

    • Description Version Size Action
      AN2620
      3 A high-frequency synchronous 900 kHz step-down converter based on the ST1S10
      3.1
      1.23 MB
      PDF
      AN2754
      Buck high-brightness LED driver based on the ST1S10 step-down DC-DC converter voltage regulator
      1.0
      302.1 KB
      PDF
      AN2620

      3 A high-frequency synchronous 900 kHz step-down converter based on the ST1S10

      AN2754

      Buck high-brightness LED driver based on the ST1S10 step-down DC-DC converter voltage regulator

Publications and Collaterals

    • Description Version Size Action
      S2-LP:Ultra-low-power, high-performance, sub-1GHz RF transceiver 4.0
      1.47 MB
      PDF

      S2-LP:Ultra-low-power, high-performance, sub-1GHz RF transceiver

    • Description Version Size Action
      Linear and Switching Voltage Regulators Selection Guide 3.0
      370.88 KB
      PDF

      Linear and Switching Voltage Regulators Selection Guide

Embedded Software

    • Part Number

      Sub-1 GHz RF communication software expansion for STM32Cube

    • Part Number

      STSW-BNRG-S2LP evaluation software package based on BlueNRG-1 and S2-LP

EMI Filtering and Signal Conditioning

Part number Description
BALF-SPI-02D3 50Ω / Conjugate match to SPIRIT1 433MHz Balun Transformer & Integrated Filtering
BALF-SPI2-01D3 50 Ω nominal input / conjugate match balun to S2-LP,868 - 930 MHz with integrated harmonic filter
Part number
50Ω / Conjugate match to SPIRIT1 433MHz Balun Transformer & Integrated Filtering
50 Ω nominal input / conjugate match balun to S2-LP,868 - 930 MHz with integrated harmonic filter

MEMS and Sensors

Part number Description
HTS221 Capacitive digital sensor for relative humidity and temperature
Part number
Capacitive digital sensor for relative humidity and temperature

Wireless Transceivers, MCUs and Modules

Part number Description
SPSGRF Sub-GHz (868 or 915 MHz) low power programmable RF transceiver modules
SPSGRFC Sub1GHz (433, 868 or 915 MHz) programmable transceiver module with ufl connector
Part number
Sub-GHz (868 or 915 MHz) low power programmable RF transceiver modules
Sub1GHz (433, 868 or 915 MHz) programmable transceiver module with ufl connector