Sub1Ghz Introduction

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Introduction

STM portfolio of Sub1GHz includes transmitters, transceivers and modules supporting a host of different applications in home and building automation (Smart Home and Smart City) as well as industrial process control (Smart Factory) and automated metering infrastructures (Smart Grid) or, more broadly, for the Internet of Things (IoT).

They support network operated in the license-free ISM and SRD frequency bands at 169, 315, 433, 868, and 915 MHz and several modulation schemes such as 2(G)FSK, 4(G)FSK, OOK and  ASK.

STM transceivers also support advanced technologies such as frequency hopping, auto-acknowledgment and antenna diversity to secure error-free data transmission even in harsh-environmental or challenging-logistical conditions

STM Sub-1GHz modules, operating in IMS and SMD band, are based on our transceivers and are equipped with antenna, xtal and balun.
Modules are available with or without the host microcontroller for enhanced flexibility. They provide a ready to use solution, fully RF, ETSI, IC and FCC certified, that helps minimize time to volume.

STM ICs and Module are supported by an extensive set of evaluation boards, software, firmware and application notes.

Sub-1GHz Quick Reference Guide

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The ICs are:

  • S2-LPTX – Sub-1GHz transmitter
    Frequency bands:
    …413-479 MHz
    …826-958 MHz
    Modulation schemes:
    …2(G)FSK, 4(G)FSK, OOK, ASK
    Ultra-low power consumption:
    …10 mA TX @ +10 dBm
    Programmable RF output power up to +16 dBm
    Ready for: Sigfox, Wireless M-Bus, and IEEE 802.15.4g networking connectivity, simplifying the design of IoT applications and enabling remote sensors to directly connect to the cloud without the need for a local gateway.
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  • S2-LP – transceiver (TX/RX)
    Frequency bands:
    …413-479 MHz (S2-LPQTR)
    …452-527 MHz (S2-LPCBQTR)
    …826-958 MHz (S2-LPQTR)
    …904-1055 MHz (S2-LPCBQTR)
    Modulation schemes:
    …2(G)FSK, 4(G)FSK, OOK, ASK and -130 dBm.
    Consumption: 7 mA RX and 10 mA TX @ +10 dBm
    Programmable RF output power up to +16 dBm
    Ready for: Sigfox, Wireless M-Bus, 6LowPAN, ENOCEAN and IEEE 802.15.4g networking connectivity, simplifying the design of IoT applications and enabling remote sensors to directly connect to the cloud without the need for a local gateway.

    • The evaboard for S2-LP is:
      • STEVAL-FKI868V2 – Sub-1GHz transceiver development kit based on S2-LP
      • STSW-S2LP-DK – Evaluation SW package based on S2-LP

        Key Features
        * S2-LP DK GUI PC application supporting S2-LP device
        * S2-LP library and examples
        * SDK Eval NUCLEO-L1 LL (low level) API to manage the motherboard (NUCLEO-STM32L1) interfacing with the S2-LP daughterboard
        * STM32L1 HAL driver (STM32Cube)
        * Drivers for PC (USB Virtual COM + mass storage)
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        After the installation the tools are in the:
        START > STMicroelectronics > S2-LP DK_x.x.x
        (x.x.x is the SW version, in my case 1.2.0)
        See below.
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        The projects ready to use for STM32L1 and STM32L0 based on KEIL are in the directory:
        C:\Program Files (x86)\STMicroelectronics\S2-LP DK_1.2.0\Projects\Projects_Cube\S2LPLibrary_Examples\MDK-ARM
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        This directory, often is blocked by the administrator of your PC.
        For use the examples copy the contents of the directory:
        C:\Program Files (x86)\STMicroelectronics\S2-LP DK_1.2.0
        into a new directory, for example XYZ.
        Now work in your directory XYZ.
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      • STSW-S2LP-SFX-DK – Evaluation SW package for SigFox based on S2-LP
        Key Features
        * S2-LP – SigFox Demo GUI PC application with graphical user interface
        * ST-SigFox library API for S2-LP
        * Sample embedded application provided
        * SDK Eval NUCLEO-L1 LL (low level) API to manage the motherboard  (NUCLEO-STM32L1) interfacing with the S2-LP daughterboard
        * STM32L1 HAL driver (STM32Cube)
        * Drivers for PC (USB Virtual COM + mass storage)
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      • BALF-SPI2-01D3 – 50 Ω nominal input / conjugate match balun to S2-LP, 868 – 927 MHz with integrated harmonic filter.
        433 Mhz coming soon.
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      • More info regarding SigFox are here.
      • More info regarding ENOCEAN are here.
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  • STS1TX – transmitter (TX only)
    Band: 169, 315, 433, 868, and 915/920 MHz
    Modulation: 2FSK, GFSK, MSK, GMSK, OOK, ASK and -120 dBm
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  • SPIRIT1 – transceiver (TX/RX)
    Band: 169, 315, 433, 868, and 915/920 MHz
    Modulation: 2FSK, GFSK, MSK, GMSK, OOK, ASK and -120 dBm.
    Consumption: 9 mA RX and 21 mA TX at +11 dBm
    Ready for: Wireless M-Bus and 6LowPAN networking connectivity, simplifying the design of IoT applications and enabling remote sensors to directly connect to the cloud without the need for a local gateway.
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    • The evaboard are:
      • STEVAL-IDS001V2    SPIRIT1 – Low Data Rate Transceiver – 315 MHz – USB dongle
      • STEVAL-IDS001V3    SPIRIT1 – Low Data Rate Transceiver – 433 MHz – USB dongle
      • STEVAL-IDS001V4    SPIRIT1 – Low Data Rate Transceiver – 868 MHz – USB dongle
        How to update the FW on SPIRIT1 dongle
      • STEVAL-IDS001V5    SPIRIT1 – Low Data Rate Transceiver – 915 MHz – USB dongle
      • STEVAL-IKR001V2    SPIRIT1 – Low Data Rate Transceiver – 315 MHz – FULL KIT
      • STEVAL-IKR001V2D  SPIRIT1 – Low Data Rate Transceiver – 315 MHz – DAUGHTER BOARD
      • STEVAL-IKR001V8D  SPIRIT1- low data rate transceiver – 868 MHz – DAUGHTER BOARD – range extender
      • STEVAL-IKR002V1    SPIRIT1 – Low Data Rate Transceiver – 169 MHz – FULL KIT
      • STEVAL-IKR002V1D  SPIRIT1 – Low Data Rate Transceiver – 169 MHz – DAUGHTER BOARD
      • STEVAL-IKR002V2D  SPIRIT1 – Low Data Rate Transceiver – 315 MHz – DAUGHTER BOARD
      • STEVAL-IKR002V3     SPIRIT1 – Low Data Rate Transceiver – 433 MHz – FULL KIT
      • STEVAL-IKR002V3D  SPIRIT1 – Low Data Rate Transceiver – 433 MHz – DAUGHTER BOARD
      • STEVAL-IKR002V4    SPIRIT1 – Low Data Rate Transceiver – 868 MHz – FULL KIT
      • STEVAL-IKR002V4B  SPIRIT1 – low data rate transceiver – 868 MHz – DAUGHTER BOARD – integrated balun
      • STEVAL-IKR002V4D  SPIRIT1 – Low Data Rate Transceiver – 868 MHz – DAUGHTER BOARD
      • STEVAL-IKR002V5   SPIRIT1 – Low Data Rate Transceiver – 915 MHz – FULL KIT
      • STEVAL-IKR002V5D  SPIRIT1 – Low Data Rate Transceiver – 915 MHz – DAUGHTER BOARD
      • STEVAL-IKR002V7D  SPIRIT1 – Low Data Rate Transceiver – 169 MHz – DAUGHTER BOARD – range extender

        All the above evaboards are here  in the TOOLS and SOFTWARE section, next select: EVALUATION TOOLS

        The SDK for the above boards is STSW-CONNECT009

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The Modules are:

  • SPSGRFC – available at 433, 868 or 915 MHz MHz – (UFL connector for external antenna + SPIRIT1)
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  • SPSGRF – available at 868 or at 915 MHz – (Antenna + SPIRIT1)
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    mod868
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  • SP1MLxx – available at 868 or at 915 MHz – (Antenna + SPIRIT1 + STM32L1 + AT commands)
    mod868constm32l1

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Third party module

The evaboars

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