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STEVAL-FKI512V1

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Sub-1GHz (452-527 MHz) transceiver development kit based on S2-LP

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Parameter NameParameter Value
Core ProductS2-LP, STM32L0
ECCN USEAR99
ECCN EUNEC
Packing TypeNot Applicable
RoHs compliantEcopack2
GradeIndustrial
Package NameCARD

The STEVAL-FKI512V1 evaluation board is based on the S2-LP sub-1GHz ultra-low power low data-rate transceiver suitable for ISM bands and wireless M-Bus.


The NUCLEO-L053R8 motherboard is equipped with an STM32L0 low power microcontroller to control the S2-LP.


The board integrates a ST-LINK/V2-1 debugger/programmer for firmware updating.

Key features
  • S2-LP narrow band ultra-low power sub-1GHz transceiver in a standalone RF module tuned for 452-527 MHz frequency bands
  • STM32 Nucleo-64 development board with STM32L0 MCU
  • Suitable for wireless M-Bus systems
  • Associated S2-LP development kit including, documentation, firmware for STM32L and GUI
  • Programmable RF output power up to +15 dBm
  • Modulation schemes: 2-FSK, 2-GFSK, 4-FSK, 4-GFSK, OOK, and ASK
  • Air data rate from 0.1 to 500 kbps
  • Ultra-low power consumption:
    • 7 mA RX
    • 10 mA TX at +10 dBm
  • Excellent performance of receiver sensitivity (up to -130 dBm)
  • Low duty cycle RX/TX operation mode
  • Automatic acknowledgement, retransmission and timeout protocol engine
  • SPI interface for microcontroller
  • USB interface
  • RoHS compliant