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XIAO MG24 Sense - Matter-Ready MCU with Onboard IMU & Mic for TinyML & Advanced IoT
Unlock the future of smart connected devices with the XIAO MG24 Sense ! This ultra-compact development board is engineered around the powerful Silicon Labs EFR32MG24 SoC, bringing Matter-native connectivity (Thread & Bluetooth LE 5.3), exceptional RF performance, and advanced onboard sensors - including a 6-axis IMU and analog microphone - directly to your fingertips. It's the perfect choice for developers looking to build sophisticated TinyML applications, wearable technology, and responsive home automation solutions.
The XIAO MG24 Sense leverages the EFR32MG24's 32-bit 78 MHz ARM Cortex®-M33 core with DSP instruction, ensuring robust processing power for your projects. Its outstanding RF capabilities include an onboard antenna with up to 50m BLE range (in open, interference-free areas) and a UFL connector for an optional external antenna, making it ideal for wireless IoT projects . With a super-low power design consuming less than 1.95μA in sleep mode, it's perfect for battery-powered applications .
What truly sets the "Sense" version apart are its integrated analog microphone and 6-axis IMU (Inertial Measurement Unit) . These sensors open up a world of possibilities for edge AI applications , including pose perception, motion tracking, gesture recognition, and voice-activated controls. Security is paramount, with a dedicated hardware secure engine featuring Secure Vault functions. All this power and versatility is packed into the classic XIAO thumb-sized form factor, ensuring seamless integration with the vast XIAO accessory ecosystem.
https://youtu.be/A_XUi8tlKWk
Features:
- High Performance MCU : Silicon Labs' EFR32MG24 SoC , 32-bit 78 MHz ARM Cortex®-M33 with DSP instruction
- Matter Native : Compatible with Matter® over Thread® and Bluetooth® Low Energy 5.3, Supported by the Arduino® Core
- Outstanding RF Performance: Equipped with an on-board antenna with BLE range up to 50m in an open location with no signal interference, while reserving an interface for external UFL antenna
- Super-Low Power Design : Power consumption less than 1.95μA in sleep mode, ideal for battery-powered home automation application
- Advanced Onboard Sensors : Features additional analog microphone and 6-axis IMU for TinyML and edge AI applications such as pose perception for more responsive automation.
- Security Encrypted On-Chip: A dedicated hardware secure engine containing its own CPU enables the Secure Vault functions.
- Rich On-Board Resources: Additional 4MB Flash on board, on-board battery charging circuit, 19 GPIOs, LED
- Classic XIAO Design: 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
- XIAO Accessory Add-ons and Kits Compatibility : 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.
Specifications:
| Product | XIAO MG24 | XIAO MG24 Sense |
| Processor | Silicon Labs EFR32MG24 | Silicon Labs EFR32MG24 |
| ARM Cortex-M33 @ 78MHz | ARM Cortex-M33 @ 78MHz | |
| RAM | 256kB | 256kB |
| Flash | 1536KB + 4MB Onboard | 1536KB + 4MB Onboard |
| LEDs | 1 U ser LED, 1 P ower LED | 1 U ser LED, 1 P ower LED |
| Sensors | - |
Onboard Analog M icrophone Onboard 6- A xis IMU |
| Interface |
22
Pins:
11 x Analog,11x Digital, 1 x I²C , 2 x UART, 2 x SPI, All PWM |
22
Pins:
11 x Analog,19x Digital, 1x I²C , 2x UART, 2x SPI, All PWM |
| Button | 1 RESET B utton | 1 RESET B utton |
| Security | Hardware Cryptographic Acceleration, True Random Number Generator, ARM® TrustZone®, Secure Boot, Secure Debug Unlock etc. | Hardware Cryptographic Acceleration, True Random Number Generator, ARM® TrustZone®, Secure Boot, Secure Debug Unlock etc. |
| Low power | 1.95 μA | 1.95 μA |
| Normal | 6.71mA | 6.71mA |
| Sleep | 1.91mA | 1.91mA |
| Software C ompatibility | Arduino IDE | Arduino IDE |
| Working Temperature | -20 °C -70 °C | -20 °C -70 °C |
| Dimensions | 21x17.8 mm | 21x17.8 mm |
Hardware Overview:
Application
- Smart Home Devices: Using Matter® for devices like smart locks, sensors, and lighting.
- Remote Controls: Low-power remotes for home automation systems
- TinyML Applications: On-device machine learning for gesture recognition and voice commands.
- Environmental Monitoring: Battery-powered sensors for temperature, humidity, and air quality.
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