1. Introduction
The xG24 Dev Kit (OPN: xG24-DK2601B) has been designed to inspire customers to make battery-operated IoT devices with the Sili-
con Labs EFR32MG24 Wireless Gecko System-on-Chip. The highlights of the board include five different environmental sensors, ster-
eo I2S microphones, and a dedicated ADC U.FL connector and precise voltage reference, all accessible to the EFR32MG24 wireless
MCU. The peripherals have been grouped into power domains that can be turned on and off by the application code as needed.
Programming the xG24 Dev Kit is easily done using a USB Micro-B cable and the on-board J-Link debugger. A USB virtual COM port
provides a serial connection to the target application, and the Packet Trace Interface (PTI) offers invaluable debug information about
transmitted and received packets in wireless links. Included on the board is a 32 Mbit serial flash that can be used for Over-The-Air
(OTA) firmware upgrade, or as a general purpose non-volatile memory. The xG24 Dev Kit is supported in Simplicity Studio™, and a
Board Support Package (BSP) is provided to give application developers a flying start.
Energy profiling and advanced wireless network analysis and debugging tools are available through the provided Mini Simplicity Con-
nector using an external Silicon Labs debugger.
Connecting external hardware to the xG24 Dev Kit can be done using the 20 breakout pads which present peripherals from the
EFR32MG24 Wireless Gecko such as I
2
C, SPI, UART, and GPIOs. The breakout pads follow the same pinout as the expansion head-
ers (EXP) on other Silicon Labs Starter Kits. The board also features a Qwiic connector which can be used to connect hardware from
the Qwiic Connect System through I
2
C.
1.1 Kit Contents
The following items are included in the box:
• 1x MG24 Dev Kit board (BRD2601B)
• 1x USB Type A to Micro-B cable
1.2 Getting Started
Detailed instructions for how to get started with your new xG24 Dev Kit can be found on the Silicon Labs web page:
1.3 Hardware Content
The following key hardware elements are included on the xG24 Dev Kit:
• EFR32MG24 Wireless Gecko SoC with 78.0 MHz operating frequency, 1536 kB flash, and 256 kB RAM
• 2.4 GHz ceramic antenna for wireless transmission
• Silicon Labs Si7021 relative humidity and temperature sensor
• Silicon Labs Si7210 hall effect sensor
• TDK InvenSense ICM-20689 6-axis inertial sensor
• Two ICS-43434 MEMS microphones
• Bosch Sensortec BMP384 barometric pressure sensor
• Ambient light sensor (VEML6035)
• Macronix ultra low power 32 Mbit SPI flash (MX25R3235F)
• RGB LED and two push buttons
• U.FL connector and precise external voltage reference for ADC measurements
• Power enable signals and isolation switches for ultra-low power operation
• On-board SEGGER J-Link debugger for easy programming and debugging, which includes a USB virtual COM port and Packet
Trace Interface (PTI)
• Mini Simplicity connector for access to energy profiling and advanced wireless network debugging
• Breakout pads for GPIO access and connection to external hardware
• Qwiic connector for connecting external hardware from the Qwiic Connect System
• Reset button
• Automatic switchover between USB and battery power
• CR2032 coin cell holder and external battery connector
UG524: xG24 Dev Kit User's Guide
Introduction
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