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STDES-MONARCH

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Sigfox Monarch reference design based on S2-LP and BlueNRG-2

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Parameter NameParameter Value
Core ProductBlueNRG-2, S2-LP
GradeIndustrial

This reference design represents a complete dual radio Sub-1 GHz and BLE solution for Sigfox and LPWAN protocols.


STDES-MONARCH is Sigfox Verified and is provided free of charge with all the necessary design documents. ST also provides several relevant software development kits and environments to help you customize your application.

Key features
  • Sigfox Verified (M_0021_459D_01) design with Monarch capability so IoT devices can determine the appropriate RC configuration for the local area
  • S2-LP narrow band ultra-low power Sub-1 GHz transceiver in a standalone RF module tuned for 860-940 MHz frequency bands with external power amplifier
  • BlueNRG-2 low power Bluetooth® SoC with 256 KB Flash, 24 KB RAM, compliant with Bluetooth® v5.0 specification
  • Excellent receiver sensitivity (up to -130 dBm)
  • Modulation schemes: 2-FSK, 2-GFSK, 4-FSK, 4-GFSK, OOK, and ASK
  • Air data rate from 0.1 to 500 kbps
  • Programmable RF output power up to +27 dBm
  • Low duty cycle RX/TX operation mode
  • 50 Ω ports for Sub-1 GHz radio and optional BLE radio
  • Automatic acknowledgment, retransmission and timeout protocol engine