UG321: EFR32FG14 2400/434 MHz 10 dBm
Dual Band Radio Board and Wireless
Starter Kit User's Guide
A Wireless Starter Kit with the BRD4259A Radio Board is an ex-
cellent starting point to get familiar with the EFR32™ Flex Gecko
Wireless System-on-Chip, and it provides all necessary tools for
developing a Silicon Labs wireless application.
BRD4259A is a plug-in board for the Wireless Starter Kit Mainboard. It is a complete ref-
erence design for the EFR32FG14 Wireless SoC, with matching networks for 10 dBm
output power, a 2.4 GHz PCB antenna, and an SMA connector for the 434 MHz band.
The Wireless Starter Kit Mainboard contains an on-board J-Link debugger with a Packet
Trace Interface and a Virtual COM port, enabling application development and debug-
ging the attached radio board as well as external hardware. The Mainboard also con-
tains sensors and peripherals for easy demonstration of some of the EFR32's many ca-
pabilities.
This document describes how to use the BRD4259A Radio Board together with a Wire-
less Starter Kit Mainboard.
BRD4259A RADIO BOARD FEATURES
• EFR32FG14 Flex Gecko Wireless SoC
with 256 kB Flash, and 32 kB RAM
(EFR32FG14P233F256GM48)
• 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.
WIRELESS STK MAINBOARD FEATURES
• Advanced Energy Monitor
• Packet Trace Interface
• Virtual COM Port
• SEGGER J-Link on-board debugger
• External device debugging
• Ethernet and USB connectivity
• Silicon Labs Si7021 Relative Humidity and
Temperature sensor
• Low Power 128x128 pixel Memory LCD
• User LEDs / Pushbuttons
• 20-pin 2.54 mm EXP header
• Breakout pads for Wireless SoC I/O
• CR2032 coin cell battery support
SOFTWARE SUPPORT
• Simplicity Studio™
• Energy Profiler
• Network Analyzer
ORDERING INFORMATION
• SLWSTK6063B
• SLWRB4259A
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