Seeed XIAO nRF54LM20A SENSE

The Seeed XIAO nRF54LM20A Sense combines ultra-low-power wireless connectivity with a built-in 6-axis IMU and digital microphone, alongside BLE 6.0, Matter, Thread and Zigbee support.

The Seeed XIAO nRF54LM20A Sense is the latest ultra-low-power addition to the XIAO family, built around Nordic Semiconductor's nRF54LM20A SoC and paired with the nPM1300 PMIC for integrated battery charging and power regulation.

Designed for always-on IoT and edge sensing applications, it supports BLE 6.0, Matter, Thread, Zigbee, and proprietary 2.4 GHz connectivity up to 4 Mbps (not WiFi!), with a deep sleep current as low as 4.76µA and Ship Mode at 0.33µA. The board offers 28 GPIOs, USB-C, onboard battery charging, NFC, an IPEX4 antenna connector, 6-axis IMU and digital microphone for production-ready wireless designs.

This is available with loose headers or pre-soldered headers. Please select your preferred option before checkout.

Features

• Onboard sensing
  • 6-Axis IMU
  • PDM Microphone
• Ultra-low-power nRF54LM20A SoC from Nordic Semiconductor
• nPM1300 PMIC with integrated battery charging and power regulation
• BLE 6.0 connectivity
• Matter, Thread, and Zigbee support
• Proprietary 2.4 GHz wireless up to 4 Mbps (not WiFi!)
• Deep sleep current as low as 4.76µA
• Ship Mode at 0.33µA
• 28 GPIO pins
• USB Type-C interface
• Onboard battery charging
• NFC capability
• IPEX4 antenna connector
• 6-axis IMU sensor
• Digital microphone
• Designed for always-on IoT and edge sensing applications
• Powerful SoC with Advanced Connectivity & Security
• Ultra-Low Power Efficiency
• Streamlined Development Experience

Specifications

Product Name	Seeed Studio XIAO nRF54LM20A Sense
Chipset	nRF54LM20A | nRF54LM20B Datasheet
Processor	Arm® Cortex®-M33 128 MHz RISC-V 128 MHz Coprocessor
RAM	512KB
Flash	2 MB Non-volatile Memory (NVM)
External Flash	8 MB onboard external flash
PMIC / Battery	nPM1300 PMIC for power regulation and battery charging
Interface	28x GPIO Pin 9x Analog Pin 1x I2C 1x UART 1x SPI 1x NFC 1x SHPHLD
Onboard	1x User LED (R/G/B 3 Colour) 1x Charge LED (Battery Charging Indicator) 1x Reset Button 1x User Button 1x IPEX4 Connector (for external antenna) 1x 6-Axis IMU 1x PDM Microphone
Wireless Connectivity	Bluetooth LE 6.0 (include Channel Sounding) Bluetooth Mesh NFC Thread Zigbee Matter Amazon Sidewalk Proprietary 2.4 GHz protocols (not WiFi!)
Power Input	Type-C: 5V Battery: 3.7V
Low Power Mode (3.7V@2A)	Light-Sleep: ~9.96μA Deep-Sleep(System OFF): ~4.76μA Deep-Sleep(System OFF, GRTC wake-up): ~4.92μA Ship-Mode: 0.33μA
Software Compatibility	Nordic nRF Connect SDK PlatformIO Zephyr RTOS
Working Temperature	-20°C to 70°C
Dimensions	21 x 17.8mm

Resources

• Hardware overview image - Front
• Hardware overview image - Back
• Supplier code:
  • Pre-soldered headers - 100066112
  • Loose headers - 100018440

Package Contents

• 1x Seeed XIAO nRF54LM20A SENSE

This is available with loose headers or pre-soldered headers. Please select your preferred option before checkout.