EFR32xG24 Dev Kit

✅ Hubble Compatible - This board is fully compatible with Hubble Network

Overview

The EFR32xG24 Dev Kit (xG24-DK2601B) is Silicon Labs’ flagship development platform for the EFR32MG24 wireless SoC. Built on an ARM Cortex-M33 processor with AI/ML hardware acceleration and Secure Vault™ security, it supports Bluetooth Low Energy, Matter, Thread, and Zigbee protocols.

Quick Specifications

Specification	Details
Manufacturer	Silicon Labs
SoC	EFR32MG24B310F1536IM48-B
CPU	ARM Cortex-M33 @ 78 MHz
RAM	256 KB
Flash	1536 KB (1.5 MB)
Bluetooth	BLE 5.3, IEEE 802.15.4
Zephyr Board ID	`xg24_dk2601b`

Key Features

Bluetooth Low Energy 5.3 with extended advertising
AI/ML Hardware Accelerator (MVP) for edge intelligence
Secure Vault™ advanced security features
Multi-protocol support (Matter, Thread, Zigbee, BLE)
High RF performance (+20 dBm TX power)
Rich sensor suite (humidity, temperature, hall effect, IMU, ambient light, pressure)
On-board J-Link debugger
32 Mbit SPI flash for data storage

Getting Started with Hubble

Prerequisites

Before you begin, ensure you have:

EFR32xG24 Dev Kit board
USB cable (Micro-USB)
Zephyr development environment installed
Hubble Network account

Important: Before first use, update the J-Link firmware using Silicon Labs Simplicity Studio.

Build and Flash

Follow the Hubble Zephyr Quick Start Guide to integrate Hubble Network into your project.

Once your environment is configured, build and flash the Hubble BLE Network sample:

# Retrieve SiLabs BLE binary blobs
west blobs fetch hal_silabs

# Build for EFR32xG24 Dev Kit
cd ~/hubblenetwork-workspace/
west build -p -b xg24_dk2601b modules/lib/hubblenetwork-sdk/samples/zephyr/ble-network

# Flash to board
west flash

Verify Connection

Connect to the serial console to verify your board is communicating with Hubble:

# Linux/macOS
minicom -D /dev/ttyACM0 -b 115200

# Windows (use PuTTY or similar)
# Connect to COMx at 115200 baud

You should see output indicating successful Hubble Network initialization.

Pinout Reference

LEDs

LED0: PB2
LED1: PB4

Buttons

BTN0: PB1
BTN1: PB3

UART Console

TX: PA8 (USART0, connected to board controller)
RX: PA9 (USART0, connected to board controller)
Baud Rate: 115200

Power Considerations

The EFR32xG24 Dev Kit provides multiple power options:

USB Power: Connect via Micro-USB (most common for development)
Battery: CR2032 coin cell holder
External Power: Power header pins

Typical Power Consumption:

Active (BLE advertising): ~4 mA
EM2 Sleep: ~2 µA
EM4 Deep Sleep: ~20 nA

The EFR32MG24 is optimized for extreme low-power operation with advanced energy modes. The AI/ML accelerator enables efficient edge processing without waking the main CPU.