
100018440 · Seeed Studio

Seeed Studio 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), with a deep sleep current as low as 4.76 µA and Ship Mode at 0.33 µA. The board offers 28 GPIOs, USB Type-C, onboard battery charging, NFC, an IPEX4 antenna connector, 6-axis IMU and digital microphone for… (Seeed SKU 100018440; also 100066112)
| Part number | 100018440 |
|---|---|
| Manufacturer | Seeed Studio |
| Category | Development Boards › nRF52 / nRF54 Boards |
| Pins | 14 |
| Current | 4.76 µA |
| Frequency | 2.4 GHz |
Seeed Studio XIAO nRF54LM20A Sense pinout
| Pin | Name | Type | Description |
|---|---|---|---|
| 1 | D0/A0 | bidirectional | |
| 2 | D1/A1 | bidirectional | |
| 3 | D2/A2 | bidirectional | |
| 4 | D3/A3 | bidirectional | |
| 5 | D4/SDA | bidirectional | |
| 6 | D5/SCL | bidirectional | |
| 7 | D6/TX | bidirectional | |
| 8 | D7/RX | bidirectional | |
| 9 | D8/SCK | bidirectional | |
| 10 | D9/MISO | bidirectional | |
| 11 | D10/MOSI | bidirectional | |
| 12 | 3V3 | power | |
| 13 | GND | ground | |
| 14 | 5V | power |
Schematic symbol and footprint
Schematic symbol
Footprint: Seeed Studio XIAO (2 x 7, 15.24 mm rows) — to scale, pad 1 in yellow (mm). Check against the datasheet before ordering PCBs.






