Seeed XIAO MG24 Sense

This XIAO MG24 Sense is a small development board that uses the Silicon Labs EFR32MG24 SoC and the ARM Cortex-M33 processor. There is 4MB of Flash and it's ideal for battery-powered home automation products due to its low power consumption (less than 1.95μA in sleep mode). It supports Matter, Thread, Zigbee and Bluetooth LE 5.3. There is an antenna attached to the board with a BLE range of up to 50m in an open location with no signal interference and there is also room for an external uFL antenna. The board also has an analogue microphone and a 6-axis IMU for TinyML. If you're trying to save some pennies and have no need for the microphone or 6-axis IMU, click here. The board comes with a set of loose headers for soldering to the board if required. Features

* Silicon Labs' EFR32MG24 SoC, 32-bit 78 MHz ARM Cortex®-M33 with DSP instruction

* Compatible with Matter® over Thread® and Bluetooth® Low Energy 5.3, Supported by the Arduino® Core

* Equipped with an on-board antenna with a BLE range of up to 50m in an open location with no signal interference, while reserving an interface for an external UFL antenna

* Power consumption less than 1.95μA in sleep mode, ideal for battery-powered home automation application

* Features an additional analogue microphone and 6-axis IMU for TinyML and edge AI applications such as pose perception for more responsive automation.

* A dedicated hardware secure engine containing its own CPU enables the Secure Vault functions.

* Additional 4MB Flash on board, on-board battery charging circuit, 19 GPIOs, LED

* Remains the classic XIAO design of the thumb-size form factor of 21 x 17.8mm, and single-sided mount, making it perfect for space-limited projects such as wearables

* Natively compatible with all the XIAO accessory add-ons and kits of Grove Expansion, CAN-Bus, LED Matrix, Vision AI Sensor, Round Display, GSP Module, 2-Mic Array, ePaper Display, mmWave sensor, LoRa Module and many more.

* Product Number: Seeed 102010610

What's on Board

Specifications

Processor Silicon Labs EFR32MG24

ARM Cortex-M33 @ 78MHz

RAM 256kB

Flash 1536KB + 4MB Onboard

LEDs 1 User LED, 1 Power LED

Sensors Analogue Microphone

6-Axis IMU

Button 1 RESET Button

Security Hardware Cryptographic Acceleration, True Random Number Generator, ARM® TrustZone®, Secure Boot, Secure Debug Unlock etc.

Low power 1.95μA

Normal 6.71mA

Sleep 1.91mA

Software Compatibility Arduino IDE

Working Temperature -20°C-70°C

Dimensions 21 x 17.8 mm

Resources

* Product Wiki

* Datasheet

* Schematic

* Wireless SoC

Pinout

* 5V - This is 5V out from the USB port. You can also use this as a voltage input but you must have some sort of diode (Schottky, signal, power) between your external power source and this pin with the anode to battery, cathode to 5V pin.

* 3V3 - This is the regulated output from the onboard regulator.

* GND - Power/data/signal ground

Package Contents

* 1x XIAO MG24 Sense

* 2x 7-pin Header strips