I-NUCLEO-LRWAN1 USI LoRa expansion board for STM32 Nucleo Data brief Features USI low-cost, LPWAN module supporting LoRa technology: 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 -40C to +85C temperature range Embedded 32 kHz and 32 MHz crystals USART communication interface ST accelerometer and magnetometer sensor (LSM303AGR) 1. Picture is not contractual. ST relative humidity and temperature sensor The I-NUCLEO-LRWAN1 can be controlled from (HTS221) an external host such as NUCLEO-L053 boards, ST pressure sensor (LPS22HB) running the I-CUBE-LRWAN embedded software. This software provides the means to set up a Arduino connectors complete LoRaWAN node. SMA connector (antenna included in the kit) The I-NUCLEO-LRWAN1 is LoRaWAN class A certified and sustains the class C. Description The I-NUCLEO-LRWAN1 includes the USI USI in partnership with STMicroelectronics LoRaWAN module, Arduino connectors, a developed the LoRa expansion board for STM32 SMA connector, a 50 antenna and three ST Nucleo (I-NUCLEO-LRWAN1). This board is an environmental sensors. integrated solution allowing anyone to learn and For more details about all the components of the develop solutions using LoRa and/or FSK/OOK LoRa -Middleware library, refer to the STM32 technologies. LoRa software expansion for STM32Cube user The I-NUCLEO-LRWAN1 features the USI manual (UM2073). LoRaWAN technology module, addressing low- The I-NUCLEO-LRWAN1 is supplied by a third cost and low-power wide area network (LPWAN), party not affiliated to ST. For complete and latest which comes with the embedded AT-command information, refer to the third party GitHub page stack pre-loaded. System architecture I-NUCLEO-LRWAN1 System architecture Figure 1. I-NUCLEO-LRWAN1 architecture & 0&8BQ567 %227 9 B5) 9 B0&8 9 95() 0&2 670 / 7 < 63, 5), 5) 6:,7&+ QWHQQD 8 )/ 5(6(7 .E WH )ODVK 95B3 6 ,2 0+ 0+ .E WH 5 0 B%2267 3 7 5 17 .E WH ((3520 :.83 6: ,2 / 7 0+ / 7 6:&/. *1 N+ , & 7 8 5 HEXJB HEXJB HEXJB /3 7,0 HEXJB 06Y 9 General information The I-NUCLEO-LRWAN1 expansion board features an STMicroelectronics ultra-low-power (a) Arm Cortex -M0+ based microcontroller. a. Arm is a registered trademark of Arm Limited (or its subsidiaries) in the US and/or elsewhere. 2/4 DB3169 Rev 4