Overview
Solutions
HW Evaluation Tools
Resources
Tools and Software
Key Products
Get Started

The portion of the Industrial, Scientific and Medical (ISM) unlicensed frequency bands below 1 GHz is widely used to implement wireless communication networks in industrial process control, home and building automation and automatic meter reading applications.

Users in this band can freely select the characteristics of the physical layer – transmitted power, modulation scheme, data rate and channel bandwidth – and network topology – either star or mesh – as well as use any proprietary protocol. This help users define an optimized solution to meet performance and system efficiency requirements for the real-time monitoring and control of thousands of nodes in a large industrial process control networks. This portion of the RF spectrum is then particularly suited to enable Internet-of-Things and smart city networks including street lighting, smart parking and traffic control systems.

ST offers a range of products including RF transceivers, baluns and STM32 microcontrollers as well as hardware and software evaluation and development tools to help design and deploy cost-effective network solutions.

Part Number
Description
STEVAL-IKR001V2 SPIRIT1 - Low Data Rate Transceiver - 315 MHz - FULL KIT Quick view

Key Features

  • 2 SPIRIT1 low power, sub-GHz RF transceiver daughterboards tuned for the 315 MHz band
  • 2 STM32L microcontroller-based motherboards
  • Suitable for wireless M-BUS systems
  • Associated SPIRIT1 software development kit with documentation, STM32L firmware and GUI
  • Debug connector
  • USB interface
  • Modulation schemes: 2-FSK, GFSK, MSK, GMSK, OOK, and ASK
  • Air data rate from 1 to 500 kbps
  • Very low power consumption (9 mA RX and 21 mA TX at +11 dBm)
  • Excellent performance of receiver sensitivity (up to -120 dBm)
  • Low duty cycle RX/TX operation mode
  • Automatic acknowledgement, retransmission, and timeout protocol engine
  • AES 128-bit encryption co-processor
  • SPI interface for microcontroller
  • RoHS compliant

Show More

IMAGE

Image
Image

FEATURED RESOURCES

Schematics BOM Gerber
STEVAL-IKR001V2D SPIRIT1 - Low Data Rate Transceiver - 315 MHz - DAUGHTER BOARD Quick view

Key Features

  • SPIRIT1 low power sub GHz transceiver in a standalone RF module tuned for 315 MHz band
  • Associated SPIRIT1 development kit, including documentation, firmware for STM32L and GUI
  • Modulation schemes: 2-FSK, GFSK, MSK, GMSK, OOK, and ASK
  • Air data rate from 1 to 500 kbps
  • Very low power consumption: 9 mA RX and 21 mA TX at +11 dBm
  • Excellent receiver sensitivity (up to -120 dBm)
  • Low duty cycle RX/TX operation mode
  • Automatic acknowledgment, retransmission, and timeout protocol engine
  • AES 128-bit encryption co-processor
  • SPI interface for microcontroller
  • RoHS compliant

Show More

IMAGE

Image
Image

FEATURED RESOURCES

Schematics BOM Gerber
STEVAL-ILL082V1 Smart home lighting based on HVLED815PF and SPSGRF Quick view

Key Features

  • LED driver features:
    • 10 W flyback converter with quasi-resonant operation
    • Primary side regulation, no optocoupler required
    • High power factor and low THD
    • Open circuit and short-circuit LED management
    • ±1% LED current regulation
    • Dimming range: 2.5% to 100%
  • Sub-GHz connectivity features:
    • Works with the bundled STEVAL-ILL082V1_remote controller based on SP1ML-868 sub-GHz module
    • Allows remote lamp powering on and off
    • Allows lamp remote dimming
    • Standby power consumption: < 0.5 W
  • RoHS compliant

Show More

IMAGE

Image
Image

FEATURED RESOURCES

Schematics BOM Gerber
STEVAL-FKI433V1 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 430 - 470 MHz frequency bands
  • STM32 Nucleo 64 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 @ +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-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

Show More

IMAGE

Image
Image

FEATURED RESOURCES

Schematics BOM Gerber
B-L475E-IOT01A STM32L4 Discovery kit IoT node, low-power wireless, BLE, NFC, SubGHz, Wi-Fi Quick view

Key Features

  • Ultra-low-power STM32L4 Series MCUs based on Arm® Cortex® -M4 core with 1 Mbyte of Flash memory and 128 Kbytes of SRAM, in LQFP100 package
  • 64-Mbit Quad-SPI (Macronix) Flash memory
  • Bluetooth® V4.1 module (SPBTLE-RF)
  • Sub-GHz (868 MHz or 915 MHz) low-power-programmable RF module (SPSGRF-868 or SPSGRF-915)
  • 802.11 b/g/n compliant Wi-Fi® module from Inventek Systems (ISM43362-M3G-L44)
  • Dynamic NFC tag based on M24SR with its printed NFC antenna
  • 2 digital omnidirectional microphones (MP34DT01)
  • Capacitive digital sensor for relative humidity and temperature (HTS221)
  • High-performance 3-axis magnetometer (LIS3MDL)
  • 3D accelerometer and 3D gyroscope (LSM6DSL)
  • 260-1260 hPa absolute digital output barometer (LPS22HB)
  • Time-of-Flight and gesture-detection sensor (VL53L0X)
  • 2 push-buttons (user and reset)
  • USB OTG FS with Micro-AB connector
  • Expansion connectors:
    • Arduino™ Uno V3
    • PMOD
  • Flexible power-supply options:
    • ST LINK USB VBUS or external sources
  • On-board ST-LINK/V2-1 debugger/programmer with USB re-enumeration capability: mass storage, Virtual COM port and debug port
  • Comprehensive free software HAL library including a variety of examples, as part of the STM32Cube MCU Package
  • Support of a wide choice of Integrated Development Environments (IDEs) including IAR , Keil® , GCC-based IDEs, Arm® Mbed Enabled
  • Arm® Mbed online (see http://mbed.org)

Show More

IMAGE

Image
Image

FEATURED RESOURCES

Schematics BOM Gerber
Part Number
STEVAL-IKR001V2

SPIRIT1 - Low Data Rate Transceiver - 315 MHz - FULL KIT

Key Features

  • 2 SPIRIT1 low power, sub-GHz RF transceiver daughterboards tuned for the 315 MHz band
  • 2 STM32L microcontroller-based motherboards
  • Suitable for wireless M-BUS systems
  • Associated SPIRIT1 software development kit with documentation, STM32L firmware and GUI
  • Debug connector
  • USB interface
  • Modulation schemes: 2-FSK, GFSK, MSK, GMSK, OOK, and ASK
  • Air data rate from 1 to 500 kbps
  • Very low power consumption (9 mA RX and 21 mA TX at +11 dBm)
  • Excellent performance of receiver sensitivity (up to -120 dBm)
  • Low duty cycle RX/TX operation mode
  • Automatic acknowledgement, retransmission, and timeout protocol engine
  • AES 128-bit encryption co-processor
  • SPI interface for microcontroller
  • RoHS compliant

Show More

IMAGE

Image
Image

FEATURED RESOURCES

Schematics BOM Gerber
STEVAL-IKR001V2D

SPIRIT1 - Low Data Rate Transceiver - 315 MHz - DAUGHTER BOARD

Key Features

  • SPIRIT1 low power sub GHz transceiver in a standalone RF module tuned for 315 MHz band
  • Associated SPIRIT1 development kit, including documentation, firmware for STM32L and GUI
  • Modulation schemes: 2-FSK, GFSK, MSK, GMSK, OOK, and ASK
  • Air data rate from 1 to 500 kbps
  • Very low power consumption: 9 mA RX and 21 mA TX at +11 dBm
  • Excellent receiver sensitivity (up to -120 dBm)
  • Low duty cycle RX/TX operation mode
  • Automatic acknowledgment, retransmission, and timeout protocol engine
  • AES 128-bit encryption co-processor
  • SPI interface for microcontroller
  • RoHS compliant

Show More

IMAGE

Image
Image

FEATURED RESOURCES

Schematics BOM Gerber
STEVAL-ILL082V1

Smart home lighting based on HVLED815PF and SPSGRF

Key Features

  • LED driver features:
    • 10 W flyback converter with quasi-resonant operation
    • Primary side regulation, no optocoupler required
    • High power factor and low THD
    • Open circuit and short-circuit LED management
    • ±1% LED current regulation
    • Dimming range: 2.5% to 100%
  • Sub-GHz connectivity features:
    • Works with the bundled STEVAL-ILL082V1_remote controller based on SP1ML-868 sub-GHz module
    • Allows remote lamp powering on and off
    • Allows lamp remote dimming
    • Standby power consumption: < 0.5 W
  • RoHS compliant

Show More

IMAGE

Image
Image

FEATURED RESOURCES

Schematics BOM Gerber
STEVAL-FKI433V1

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 430 - 470 MHz frequency bands
  • STM32 Nucleo 64 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 @ +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-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-L475E-IOT01A

STM32L4 Discovery kit IoT node, low-power wireless, BLE, NFC, SubGHz, Wi-Fi

Key Features

  • Ultra-low-power STM32L4 Series MCUs based on Arm® Cortex® -M4 core with 1 Mbyte of Flash memory and 128 Kbytes of SRAM, in LQFP100 package
  • 64-Mbit Quad-SPI (Macronix) Flash memory
  • Bluetooth® V4.1 module (SPBTLE-RF)
  • Sub-GHz (868 MHz or 915 MHz) low-power-programmable RF module (SPSGRF-868 or SPSGRF-915)
  • 802.11 b/g/n compliant Wi-Fi® module from Inventek Systems (ISM43362-M3G-L44)
  • Dynamic NFC tag based on M24SR with its printed NFC antenna
  • 2 digital omnidirectional microphones (MP34DT01)
  • Capacitive digital sensor for relative humidity and temperature (HTS221)
  • High-performance 3-axis magnetometer (LIS3MDL)
  • 3D accelerometer and 3D gyroscope (LSM6DSL)
  • 260-1260 hPa absolute digital output barometer (LPS22HB)
  • Time-of-Flight and gesture-detection sensor (VL53L0X)
  • 2 push-buttons (user and reset)
  • USB OTG FS with Micro-AB connector
  • Expansion connectors:
    • Arduino™ Uno V3
    • PMOD
  • Flexible power-supply options:
    • ST LINK USB VBUS or external sources
  • On-board ST-LINK/V2-1 debugger/programmer with USB re-enumeration capability: mass storage, Virtual COM port and debug port
  • Comprehensive free software HAL library including a variety of examples, as part of the STM32Cube MCU Package
  • Support of a wide choice of Integrated Development Environments (IDEs) including IAR , Keil® , GCC-based IDEs, Arm® Mbed Enabled
  • Arm® Mbed online (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
      AN4190
      Antenna selection guidelines
      1.1
      1.1 MB
      PDF
      AN2348
      IPAD™ 400 µm Flip Chip: package description and recommendations for use
      5.0
      261.7 KB
      PDF
      AN4193
      Low duty cycle operation with the SPIRIT1 transceiver
      2.0
      225.38 KB
      PDF
      AN4947
      PCB design guidelines for the S2-LP transceiver
      2.0
      1.07 MB
      PDF
      AN4169
      PCB design guidelines for the SPIRIT1 transceiver
      2.0
      652.41 KB
      PDF
      AN4962
      S2-LP ETSI compliance test at 868 MHz SRD band
      1.0
      1.8 MB
      PDF
      AN4198
      SPIRIT1: increasing the output power
      1.0
      387.86 KB
      PDF
      AN4953
      Using the S2-LP transceiver under ARIB STD-T108 in the 920 MHz band
      1.0
      4.23 MB
      PDF
      AN4997
      Using the S2-LP transceiver under FCC Title 47 Part 15 in the 430 - 470 MHz band
      1.0
      847.96 KB
      PDF
      AN4949
      Using the S2-LP transceiver under FCC title 47 part 15 in the 902 – 928 MHz band
      1.0
      1.92 MB
      PDF
      AN5009
      Using the S2-LP transceiver under FCC title 47 part 90 in the 450 - 470 MHz band
      1.0
      938.24 KB
      PDF
      AN5008
      Using the S2-LP transceiver under the ARIB STD-T67 standard
      1.0
      871.54 KB
      PDF
      AN5029
      Using the S2-LP transceiver with FEM at 500 mW under FCC title 47 part 15 in the 902 – 928 MHz band
      1.0
      2.46 MB
      PDF
      AN4133
      Using the SPIRIT1 transceiver under ARIB STD-T108 in the 920 MHz band
      1.1
      1.54 MB
      PDF
      AN4148
      Using the SPIRIT1 transceiver under ARIB STD-T93 in the 315 MHz band
      1.1
      1.3 MB
      PDF
      AN4103
      Using the SPIRIT1 transceiver under EN 300 220 at 169 MHz
      1.0
      2.25 MB
      PDF
      AN4117
      Using the SPIRIT1 transceiver under EN 300 220 at 434 MHz
      1.0
      1.88 MB
      PDF
      AN4110
      Using the SPIRIT1 transceiver under EN 300 220 at 868 MHz
      1.0
      1 MB
      PDF
      AN4147
      Using the SPIRIT1 transceiver under FCC title 47 part 15 in the 315 MHz band
      1.1
      831.13 KB
      PDF
      AN4126
      Using the SPIRIT1 transceiver under FCC title 47 part 15 in the 902 – 928 MHz band
      1.1
      4.52 MB
      PDF
      AN4174
      Using the SPIRIT1 transceiver under the ARIB STD-T67 standard in the 426 MHz band
      1.0
      2 MB
      PDF
      AN4305
      Using the SPIRIT1 transceiver with range extender under EN 300 220 at 169 MHz
      1.0
      1.84 MB
      PDF
      AN4271
      Using the SPIRIT1 transceiver with range extender under EN 300 220 at 868 MHz
      1.0
      1.88 MB
      PDF
      AN4190

      Antenna selection guidelines

      AN2348

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

      AN4193

      Low duty cycle operation with the SPIRIT1 transceiver

      AN4947

      PCB design guidelines for the S2-LP transceiver

      AN4169

      PCB design guidelines for the SPIRIT1 transceiver

      AN4962

      S2-LP ETSI compliance test at 868 MHz SRD band

      AN4198

      SPIRIT1: increasing the output power

      AN4953

      Using the S2-LP transceiver under ARIB STD-T108 in the 920 MHz band

      AN4997

      Using the S2-LP transceiver under FCC Title 47 Part 15 in the 430 - 470 MHz band

      AN4949

      Using the S2-LP transceiver under FCC title 47 part 15 in the 902 – 928 MHz band

      AN5009

      Using the S2-LP transceiver under FCC title 47 part 90 in the 450 - 470 MHz band

      AN5008

      Using the S2-LP transceiver under the ARIB STD-T67 standard

      AN5029

      Using the S2-LP transceiver with FEM at 500 mW under FCC title 47 part 15 in the 902 – 928 MHz band

      AN4133

      Using the SPIRIT1 transceiver under ARIB STD-T108 in the 920 MHz band

      AN4148

      Using the SPIRIT1 transceiver under ARIB STD-T93 in the 315 MHz band

      AN4103

      Using the SPIRIT1 transceiver under EN 300 220 at 169 MHz

      AN4117

      Using the SPIRIT1 transceiver under EN 300 220 at 434 MHz

      AN4110

      Using the SPIRIT1 transceiver under EN 300 220 at 868 MHz

      AN4147

      Using the SPIRIT1 transceiver under FCC title 47 part 15 in the 315 MHz band

      AN4126

      Using the SPIRIT1 transceiver under FCC title 47 part 15 in the 902 – 928 MHz band

      AN4174

      Using the SPIRIT1 transceiver under the ARIB STD-T67 standard in the 426 MHz band

      AN4305

      Using the SPIRIT1 transceiver with range extender under EN 300 220 at 169 MHz

      AN4271

      Using the SPIRIT1 transceiver with range extender under EN 300 220 at 868 MHz

    • Description Version Size Action
      DT0067
      Running a simple 6LowPAN network consisting of one receiver node and one or more sensor nodes in a Sub-1GHz RF band
      1.1
      281.18 KB
      PDF
      DT0067

      Running a simple 6LowPAN network consisting of one receiver node and one or more sensor nodes in a Sub-1GHz RF band

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

EMI Filtering and Signal Conditioning

Part number Description
BALF-SPI-01D3 50Ω nominal input / conjugate match balun to SPIRIT1, with integrated harmonic filter
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
BALF-SPI2-02D3 50 Ω nominal input / conjugate match balun to S2-LP, 433 - 470 MHz with integrated harmonic filter
Part number
50Ω nominal input / conjugate match balun to SPIRIT1, with integrated harmonic filter
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
50 Ω nominal input / conjugate match balun to S2-LP, 433 - 470 MHz with integrated harmonic filter

Wireless Transceivers, MCUs and Modules

Part number Description
S2-LP Ultra-low power, high performance, sub-1GHz transceiver
SPIRIT1 Low data rate, low power Sub 1GHz transceiver
Part number
Ultra-low power, high performance, sub-1GHz transceiver
Low data rate, low power Sub 1GHz transceiver