STM32 Nucleo 32-Bit Microcontroller LoRa Expansion Board

This board is an integrated solution allowing anyone to learn and develop solutions using LoRa® and/or FSK/OOK technologies. The I-NUCLEO-LRWAN1 features the USI® LoRaWAN™ technology module, addressing low-cost and low-power wide area network (LPWAN), which comes with the embedded AT-command stack pre-loaded. The I-NUCLEO-LRWAN1 can be controlled from an external host such as NUCLEO-L053 boards, running the I-CUBE-LRWAN embedded software. This software provides the means to set up a complete LoRaWAN™ node. The I-NUCLEO-LRWAN1 includes the USI® LoRaWAN™ module, Arduino™ connectors, a SMA connector, a 50 Ohm antenna and three ST environmental sensors.

• USI® low-cost, LPWAN module supporting
• LoRa® technology includes:

- ST ultra-low-power STM32L052T8Y6 MCU, Cortex®-M0+ based with 64 Kbytes of Flash memory, 8 Kbytes of RAM, 2 Kbytes of EEPROM, T-RNG
- Semtech SX1272 radio transceiver supporting LoRa®, FSK, GFSK, MSK, GMSK and OOK modulation
- High sensitivity down to -137 dBm
- 860 MHz to 1020 MHz frequency range
- 14 dBm to 20 dBm output power
- 2.0 V to 3.6 V voltage range
- -40°C to +85°C temperature range
- Embedded 32 kHz and 32 MHz crystals
- USART communication interface

• ST accelerometer and magnetometer sensor (LSM303AGR)
• ST relative humidity and temperature sensor (HTS221)
• ST pressure sensor (LPS22HB)
• Arduino™ connectors
• SMA connector (antenna included in the kit)