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Sigfox wireless connectivity employs a proprietary technology which uses the 868 MHz (Europe) and 902 MHz (US) frequencies in the Industrial, Scientific and Medical (ISM) radio band. It utilizes ultra-narrowband modulation to enable low-power wide-area network (LPWAN) communication that provides a wide-reaching signal as it can freely pass through solid objects while requiring little energy. The network is based on a one-hop star topology and requires a mobile operator to carry the generated traffic. It ensures long-range communication at a very attractive power budget enabling devices in the network to be powered through energy harvesting technologies.

Sigfox and ST have partnered to provide silicon solutions that enable the implementation of cost-effective Machine-to-Machine (M2M) Internet-of-Things (IoT) networks.

Featured Products

Part Number
Description
STEVAL-FKI868V1 Sub-1GHz transceiver development kit based on S2-LP Quick view

Key Features

  • S2-LP narrow band ultra-low power sub-1 GHz transceiver in a standalone RF Module tuned for 860 - 940 MHz frequency bands
  • STM32 Nucleo development board with STM32L152RE 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

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FEATURED RESOURCES

Schematics BOM Gerber
B-L072Z-LRWAN1 STM32L0 Discovery kit LoRa, Sigfox, low-power wireless Quick view

Key Features

  • CMWX1ZZABZ-091 LoRa® /Sigfox™ module (Murata)
    • Embedded ultra-low-power STM32L072CZ Series MCUs, based on Arm® Cortex® -M0+ core, with 192 Kbytes of Flash memory, 20 Kbytes of RAM, 20 Kbytes of EEPROM
    • Frequency range: 860 MHz - 930 MHz
    • USB 2.0 FS
    • 4-channel,12-bit ADC, 2xDAC
    • 6-bit timers, LP-UART, I2 C and SPI
    • Embedded SX1276 transceiver
    • LoRa® , FSK, GFSK, MSK, GMSK and OOK modulations (+ Sigfox™ compatibility)
    • +14 dBm or +20 dBm selectable output power
    • 157 dB maximum link budget
    • Programmable bit rate up to 300 kbit/s
    • High sensitivity: down to -137 dBm
    • Bullet-proof front end: IIP3 = -12.5 dBm
    • 89 dB blocking immunity
    • Low Rx current of 10 mA, 200 nA register retention
    • Fully integrated synthesizer with a resolution of 61 Hz
    • Built-in bit synchronizer for clock recovery
    • Sync word recognition
    • Preamble detection
    • 127 dB+ dynamic range RSSI
  • SMA and U.FL RF interface connectors
  • Including 50 ohm SMA RF antenna
  • On-board ST-LINK/V2-1 supporting USB re-enumeration capability
  • USB ST-LINK functions:
  • Board power supply:
    • Through USB bus or external VIN /3.3 V supply voltage or batteries
  • 3xAAA-type-battery holder for standalone operation
  • 7 LEDs:
    • 4 general-purpose LEDs
    • A 5 V-power LED
    • An ST-LINK-communication LED
    • A fault-power LED
  • 2 push-buttons (user and reset)
  • Arduino Uno V3 connectors
  • Arm® Mbed (see http://mbed.org)

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IMAGE

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FEATURED RESOURCES

Schematics BOM Gerber
Part Number
STEVAL-FKI868V1

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

Key Features

  • S2-LP narrow band ultra-low power sub-1 GHz transceiver in a standalone RF Module tuned for 860 - 940 MHz frequency bands
  • STM32 Nucleo development board with STM32L152RE 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
B-L072Z-LRWAN1

STM32L0 Discovery kit LoRa, Sigfox, low-power wireless

Key Features

  • CMWX1ZZABZ-091 LoRa® /Sigfox™ module (Murata)
    • Embedded ultra-low-power STM32L072CZ Series MCUs, based on Arm® Cortex® -M0+ core, with 192 Kbytes of Flash memory, 20 Kbytes of RAM, 20 Kbytes of EEPROM
    • Frequency range: 860 MHz - 930 MHz
    • USB 2.0 FS
    • 4-channel,12-bit ADC, 2xDAC
    • 6-bit timers, LP-UART, I2 C and SPI
    • Embedded SX1276 transceiver
    • LoRa® , FSK, GFSK, MSK, GMSK and OOK modulations (+ Sigfox™ compatibility)
    • +14 dBm or +20 dBm selectable output power
    • 157 dB maximum link budget
    • Programmable bit rate up to 300 kbit/s
    • High sensitivity: down to -137 dBm
    • Bullet-proof front end: IIP3 = -12.5 dBm
    • 89 dB blocking immunity
    • Low Rx current of 10 mA, 200 nA register retention
    • Fully integrated synthesizer with a resolution of 61 Hz
    • Built-in bit synchronizer for clock recovery
    • Sync word recognition
    • Preamble detection
    • 127 dB+ dynamic range RSSI
  • SMA and U.FL RF interface connectors
  • Including 50 ohm SMA RF antenna
  • On-board ST-LINK/V2-1 supporting USB re-enumeration capability
  • USB ST-LINK functions:
  • Board power supply:
    • Through USB bus or external VIN /3.3 V supply voltage or batteries
  • 3xAAA-type-battery holder for standalone operation
  • 7 LEDs:
    • 4 general-purpose LEDs
    • A 5 V-power LED
    • An ST-LINK-communication LED
    • A fault-power LED
  • 2 push-buttons (user and reset)
  • Arduino Uno V3 connectors
  • Arm® Mbed (see http://mbed.org)

Show More

IMAGE

Image
Image

FEATURED RESOURCES

Schematics BOM Gerber
00 Files selected for download

Technical Documentation

    • Description Version Size Action
      AN2348
      IPAD™ 400 µm Flip Chip: package description and recommendations for use
      5.0
      261.7 KB
      PDF
      AN2348

      IPAD™ 400 µm Flip Chip: package description and recommendations for use

Presentations & Training Material

    • Description Version Size Action
      IoT World ST Smart Parking 1.0
      7.82 MB
      PDF
      IoT connectivity made easier with STM32 MCUs and LoRa 1.3
      2.85 MB
      PDF
      STM32 and STM8 embedded software solutions 7.0
      3.12 MB
      PDF

      IoT World ST Smart Parking

      IoT connectivity made easier with STM32 MCUs and LoRa

      STM32 and STM8 embedded software solutions

Publications and Collaterals

    • Description Version Size Action
      Complete Ecosystem for Sigfox™ IoT devices 1.0
      579.33 KB
      PDF
      Optimized Secure Solution Sigfox Ready™ IoT devices 1.0
      575.34 KB
      PDF
      S2-LP:Ultra-low-power, high-performance, sub-1GHz RF transceiver 4.0
      1.47 MB
      PDF
      STM32Cube eases STM32 development 18.12
      1.13 MB
      PDF

      Complete Ecosystem for Sigfox™ IoT devices

      Optimized Secure Solution Sigfox Ready™ IoT devices

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

      STM32Cube eases STM32 development

    • Description Version Size Action
      Making Sigfox devices easy and secure 1.0
      1.42 MB
      PDF
      STM32 32-bit MCU family - Leading supplier of Arm® Cortex®-M microcontrollers 18.02
      2.06 MB
      PDF
      STM32 Open Development Environment Brochure 17.09
      1.21 MB
      PDF
      STM32L series - Ultra-low-power 32-bit MCUs 18.11
      3.86 MB
      PDF

      Making Sigfox devices easy and secure

      STM32 32-bit MCU family - Leading supplier of Arm® Cortex®-M microcontrollers

      STM32 Open Development Environment Brochure

      STM32L series - Ultra-low-power 32-bit MCUs

EMI Filtering and Signal Conditioning

Part number Description
BALF-SPI2-01D3 50 Ω nominal input / conjugate match balun to S2-LP,868 - 930 MHz with integrated harmonic filter
Part number
50 Ω nominal input / conjugate match balun to S2-LP,868 - 930 MHz with integrated harmonic filter

Microcontrollers & Microprocessors

Part number Description
STM32L053R8 Ultra-low-power ARM Cortex-M0+ MCU with 64 Kbytes Flash, 32 MHz CPU, USB, LCD
STM32L476RG Ultra-low-power with FPU ARM Cortex-M4 MCU 80 MHz with 1 Mbyte Flash, LCD, USB OTG, DFSDM
Part number
Ultra-low-power ARM Cortex-M0+ MCU with 64 Kbytes Flash, 32 MHz CPU, USB, LCD
Ultra-low-power with FPU ARM Cortex-M4 MCU 80 MHz with 1 Mbyte Flash, LCD, USB OTG, DFSDM

Secure MCUs

Part number Description
STSAFE-A1SX Secure Element for Sigfox LPWAN network
Part number
Secure Element for Sigfox LPWAN network

Wireless Transceivers, MCUs and Modules

Part number Description
S2-LP Ultra-low power, high performance, sub-1GHz transceiver
Part number
Ultra-low power, high performance, sub-1GHz transceiver