SLWRB4251B

MSRP $49.00

EFR32FG1 2.4 GHz and 434 MHz Radio Board

The EFR32FG1 SLWRB4251B radio board plugs into the mainboard provided with the EFR32FG Starter Kits. The radio board can also be used as a reference design for matching networks of the RF interfaces. The SLWRB4251B radio board supports dual-band operation with sub-GHz operation in the US FCC 434 MHz band with an external whip antenna and 2.4 GHz operation at the 2400-2483.5 MHz band with the on-board printed antenna. The matching networks are optimized to +10 dBm output power.

This radio board cannot be used stand-alone and requires a wireless mainboard which can be purchased separately.

MSRP $49.00

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Included Device Flash RAM Output Power (dBm) Proprietary Sub-GHz Proprietary 2.4 GHz BLE Bluetooth 5 Bluetooth Mesh Zigbee Thread
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Kit Contents:

  • BRD4251B EFR32FG1 2.4 GHz, 434 MHz Radio Board

Kit Features:

  • EFR32FG1 Flex Gecko Wireless SoC with 256 kB Flash, and 32 kB RAM (EFR32FG1P133F256GM48).
  • Dual band integrated radio transceiver
  • 10 dBm output power
  • Inverted-F PCB antenna (2.4 GHz)
  • SMA antenna connector (434 MHz)
  • 8 Mbit low-power serial flash for over-the-air upgrades
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The EFR32FG 434 MHz 2.4 GHz and Sub-GHz Wireless SoC Starter Kit can be used in conjunction with the Connect SDK and Radio Abstraction Interface Layer (RAIL) SDK to simplify proprietary wireless protocol development. Sample applications, including the popular range test, are included with the SDK.
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