XIAO MG24 Pre-Soldered Matter Thread BLE 5.3 Board 78MHz Cortex-M33 256KB RAM 1.5MB + 4MB Flash 19 GPIO U.FL

XIAO MG24 Pre-Soldered Matter and Thread Development Board

The XIAO MG24 is a compact, ultra-low-power wireless development board powered by the Silicon Labs EFR32MG24 SoC. It combines a 78MHz Arm Cortex-M33 processor, Matter over Thread, Zigbee, Bluetooth Low Energy 5.3 and hardware security in a thumb-sized 21 × 17.8mm design. Pre-soldered headers make it ready for breadboard prototyping, smart-home development and battery-powered IoT projects.

Technical Specifications

• Product model: XIAO MG24
• Version: Pre-soldered
• Microcontroller: Silicon Labs EFR32MG24 SoC
• Processor: 32-bit Arm Cortex-M33 with FPU and DSP instructions
• Maximum clock frequency: 78MHz
• RAM: 256KB
• Internal Flash memory: 1536KB
• Additional onboard Flash: 4MB
• Wireless protocols: Matter over Thread, OpenThread, Zigbee and Bluetooth Low Energy 5.3
• Mesh support: Bluetooth Mesh
• Operating frequency: 2.4GHz
• Onboard antenna: Ceramic antenna
• External antenna interface: U.FL
• Specified BLE range: Up to 50m in an open, interference-free environment
• Multifunctional GPIOs: 19 digital and analog-capable pins
• I²C interfaces: 1
• UART interfaces: 2
• SPI interfaces: 2
• Onboard LEDs: User LED and power LED
• Onboard control: RESET button
• Security: Hardware cryptographic acceleration and true random-number generator
• Additional security: Arm TrustZone, secure boot and secure debug unlock
• Battery management: Onboard lithium-battery charging circuit
• Typical low-power consumption: 1.95μA under specified conditions
• Typical normal operating current: 6.71mA
• Software compatibility: Arduino IDE
• Working temperature: -20°C to 70°C
• Dimensions: 21 × 17.8mm
• Header configuration: Pre-soldered
• Integrated IMU: No
• Integrated microphone: No

Matter over Thread Connectivity

Native Matter over Thread support enables the development of interoperable smart-home products, including lighting controllers, thermostats, environmental sensors and security devices. Arduino Core compatibility provides an accessible platform for creating and testing Matter-enabled applications.

Multiprotocol Wireless Communication

The EFR32MG24 wireless subsystem supports Thread, Zigbee, Bluetooth Low Energy 5.3 and Bluetooth Mesh. Its onboard ceramic antenna simplifies compact installations, while the U.FL interface allows a compatible external antenna to be connected when required by the enclosure or operating environment.

GPIO and Peripheral Expansion

Nineteen multifunctional digital and analog-capable GPIOs support sensors, displays, relays, actuators and communication modules. One I²C, two UART and two SPI interfaces provide flexible connectivity for XIAO-compatible accessories and custom embedded hardware.

Ultra-Low-Power Battery Operation

Typical low-power consumption of 1.95μA under an appropriately configured operating mode makes the board suitable for intermittently active wireless sensors and portable IoT equipment. The integrated charging circuit supports compatible rechargeable lithium-battery applications.

Embedded Hardware Security

Hardware cryptographic acceleration, a true random-number generator, Arm TrustZone, secure boot and secure debug functions help protect device firmware, network credentials and connected IoT applications.

Compact Pre-Soldered Construction

The 21 × 17.8mm single-sided board is supplied with pre-installed headers for immediate breadboard and jumper-wire connection. Its compact footprint supports miniature sensor nodes, wearable electronics and other space-constrained products.

Typical Applications

• Matter-compatible smart-home devices
• Thread and Zigbee sensor networks
• Bluetooth Low Energy devices
• Smart lighting and thermostat controllers
• Wireless security sensors
• Indoor environmental monitoring
• Battery-powered IoT nodes
• Remote sensing and control equipment
• Compact automation systems
• Arduino wireless prototyping