Seeed XIAO nRF54LM20A

The Seeed XIAO nRF54LM20A is an ultra-low-power wireless dev board with BLE 6.0, Matter, Thread and Zigbee support, 28 GPIOs and integrated battery charging for compact IoT and edge sensing projects.

The Seeed XIAO nRF54LM20A 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, and an IPEX4 antenna connector for production-ready wireless designs.

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

Features

• Ultra-low-power nRF54LM20A SoC from Nordic Semiconductor
• Integrated nPM1300 PMIC for battery charging and power regulation
• BLE 6.0, Matter, Thread, Zigbee
• 2.4 GHz proprietary connectivity support (not WiFi!)
  • 2.4 GHz wireless data rate up to 4 Mbps 
• Deep sleep current as low as 4.76µA
• Ship Mode at 0.33µA for minimal power drain during storage
• 28 GPIO pins
• USB Type-C interface
• Onboard battery charging capability
• NFC support
• IPEX4 antenna connector for production-ready designs
• Ideal for always-on IoT and edge sensing applications
• Powerful SoC with Advanced Connectivity & Security
• Ultra-Low Power Efficiency
• Streamlined Development Experience

Specifications

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 1 x 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)
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
Software Compatibility	Nordic nRF Connect SDK PlatformIO Zephyr RTOS
Working Temperature	-20°C to 70°C
Dimensions	21 x 17.8mm

Resources

• Getting started
• Supplier code:
  • Pre-Soldered Headers - 100067736
  • Loose Headers - 100023651

Package Contents

• 1x Seeed XIAO nRF54LM20A

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