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
- Frequency range: 860 MHz - 930 MHz
- USB 2.0 FS
- 4-channel,12-bit ADC, 2xDAC
- 6-bit timers, LP-UART, I2C 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)
Download Databrief
