STM32L0 Discovery kit LoRa, Sigfox, low-power wireless

The B-L072Z-LRWAN1 LoRa®/Sigfox™ Discovery kit is a development tool to learn and develop solutions based on LoRa®, Sigfox™, and FSK/OOK technologies. This Discovery kit features an all-in-one open module CMWX1ZZABZ-091 (by Murata). The module is powered by an STM32L072CZ and an SX1276 transceiver. The transceiver features the LoRa® long-range modem, providing ultra-long-range spread spectrum communication and high interference immunity, minimizing current consumption. Since CMWX1ZZABZ-091 is an open module, user has access to all STM32L072 peripherals such as ADC, 16-bit timer, LP-UART, I2C, SPI and USB 2.0 FS (supporting BCD and LPM).

The B-L072Z-LRWAN1 Discovery kit includes an ST-LINK/V2-1 embedded debug tool interface, LEDs, push-buttons, antenna, Arduino Uno V3 connectors and USB OTG connector in Micro-B format.

The LoRaWAN stack is certified class A and C compliant. It is available in theI-CUBE-LRWAN firmware package. Several examples, including an AT-command stack, are available to help users setting up a complete LoRaWAN node.

The Sigfox™ stack is RCZ1, RCZ2, and RCZ4 certified. It is available in the X-CUBE-SFOX Expansion package. Several examples, including an AT-command modem, are also available to help users setting up a complete Sigfox™ node.

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
    • 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





Description Version Size
DB3090 DB3090: Discovery kit for LoRaWAN™, Sigfox™, and LPWAN protocols with STM32L0 2.0 252 KB
Technical Notes & Articles
Description Version Size
TN1235 TN1235: Overview of the ST-LINK embedded in STM32 MCU Nucleo, Discovery Kits and Eval Boards 1.0 155 KB
Description Version Size
UM2115 UM2115: Discovery kit for LoRaWAN™, Sigfox™, and LPWAN protocols with STM32L0 4.0 2 MB
UM2052 UM2052: Getting started with STM32 MCU Discovery Kits software development tools 1.0 1 MB
UM2159 UM2159: Getting started with Ultra-low-power STM32L0 and LoRa® Discovery kit 1.0 303 KB


Description Version Size
IoT connectivity made easier with STM32 MCUs and LoRa 1.2.0 2 MB
STM32 Development Boards Portfolio 1.0 3 MB


Board Manufacturing Specifications
Description Version Size
B-L072Z-LRWAN1 Gerber files 2.0 2 MB
Bill of Materials
Description Version Size
B-L072Z-LRWAN1 BOM 3.0 74 KB
Schematic Pack
Description Version Size
B-L072Z-LRWAN1 Schematics 2.0 8 MB


Description Version Size
Get ready for the largest IoT development ecosystem 18.02 748 KB
STM32 for makers - Releasing your creativity 18.01 1 MB
Description Version Size
STM32 32-bit MCU family - Leading supplier of Arm® Cortex®-M microcontrollers 18.02 2 MB
STM32L series - Ultra-low-power 32-bit MCUs 18.02 3 MB


Product Certifications
Description Version Size
Certificate of compliance LoRaWAN certified product delivered to Murata® 276 KB


Description Version Size
Evaluation products license agreement 1.4 128 KB
Open Reference Material License Agreement v5 42 KB


Software Development Tools
MCUs Embedded Software
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型号 Marketing Status Unit Price (US$) * Quantity Specific features ECCN (EU) ECCN (US) Country of Origin More info Order from ST Order from Distributors
B-L072Z-LRWAN1 Active 45.57 1 - NEC 3A991A2 - MORE INFO 直接购买 Add to cart DISTRIBUTOR AVAILABILITY

(*) Suggested Resale Price per unit (USD) for BUDGETARY USE ONLY. For quotes, prices in local currency, please contact your local ST Sales Office  or our Distributors


型号 Marketing Status RoHS Compliance Grade Material Declaration**
B-L072Z-LRWAN1 ActiveEcopack1

(**) The Material Declaration forms available on may be generic documents based on the most commonly used package within a package family. For this reason, they may not be 100% accurate for a specific device. Please contact our sales support for information on specific devices.