EFR32FG1 Flex Gecko 2.4 GHz and 490 MHz Radio Board

SLWRB4251A

The Flex Gecko SLWRB4251A radio board plugs into the main board provided with the Flex Gecko Starter Kits. The radio board can also be used as a reference design for matching networks of the RF interfaces. The SLWRB4251A radio board supports dual-band operation with sub-GHz operation in the US FCC 490 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 +19.5 dBm output power.

Radio Board User Guide Included Device Flash (kB) RAM (kB) Proprietary 2.4 GHz
Proprietary Sub-GHz
zigbee/Thread BLE Bluetooth 5 Bluetooth Mesh Output Power (dBm) Price (USD) Add to Cart
SLWRB4251A EFR32FG1P133F256GM48 256 32 Yes
490 MHz
No
No
No
+20 $49 490 MHz EFR32FG SLWSTK6063A Dual Band Radio Board
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