STM32L0 Discovery kit LoRa

STM32L0 Discovery kit LoRa

Description

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 the all-in-one CMWX1ZZABZ-091 open module by Murata. The module is powered by an STM32L072CZ microcontroller and 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, the user has access to all STM32L072CZ 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.

Key features:

• CMWX1ZZABZ-091 LoRa/Sigfox module (Murata)
• Embedded ultra-low-power STM32L072CZ MCU, 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, 2 × DAC
• 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
• LoRaWAN Class A certified
• SMA and U.FL RF interface connectors
• Including 50-ohm SMA RF antenna
• 7 LEDs
• 1 user and 1 reset push-buttons

• On-board ST-LINK/V2-1 debugger/programmer with USB re-enumeration capability: mass storage, Virtual COM port, and debug port
• Arduino Uno V3 connectors
• Board power supply through the USB bus or external VIN/3.3 V supply voltage or batteries
• 3 × AAA-type battery holder for standalone operation
• Support of a wide choice of Integrated Development Environments (IDEs) including IAR, Keil, GCC-based IDEs, Arm Mbed

A tutorial, which presents an example of using LoRaWAN network for the IoT applications for this product, has been published in our blog: LoRaWAN Demo Project Tutorial.