1. 서론
This manual provides essential information for the proper use and operation of your Seeed Studio XIAO nRF52840 Sense (Pre-Soldered) microcontroller board. Please read this manual thoroughly before use to ensure optimal performance and longevity of the device.
The Seeed Studio XIAO nRF52840 Sense is a compact, versatile microcontroller board featuring the Nordic nRF52840 chip. It is designed for various applications, including embedded Machine Learning, wearable devices, and IoT projects, offering Bluetooth 5.0, BLE, and NFC capabilities, along with an onboard digital microphone and 6-axis IMU.
2. 주요 특징
- 마이크로 컨트롤러 : Nordic nRF52840 with FPU, operating up to 64 MHz.
- 무선 연결 : Bluetooth 5.0, BLE, and NFC with an onboard antenna.
- 센서: Integrated digital microphone and 6-axis IMU (Inertial Measurement Unit).
- 전원 관리 : Ultra-low power consumption (5 µA in deep sleep) and lithium battery charge management.
- 개발 지원: Compatible with Arduino and CircuitPython.
- 컴팩트한 디자인: Thumb-sized form factor (21 x 17.5mm).
3. 설정 가이드
3.1 패키지 내용
Verify that your package contains the Seeed Studio XIAO nRF52840 Sense (Pre-Soldered) board.
3.2 하드웨어 연결
- 컴퓨터에 연결: Use a USB-C cable to connect the XIAO nRF52840 Sense to your computer. Ensure you use a reliable USB 2.0 port if encountering connection issues, as some USB 3.0 ports may cause DFU mode errors.
- 전원 공급 장치: The board can be powered via the USB-C port or an external lithium battery (JST connector). The board includes charge management for lithium batteries.


3.3 소프트웨어 설치 (아두이노 IDE)
- Arduino IDE를 설치하세요: 공식 Arduino에서 Arduino IDE를 다운로드하여 설치하십시오. web대지.
- Add Board Support:
- Arduino IDE를 열고 이동하세요 File > 환경 설정.
- In "Additional Board Manager URLs", add the URL for Seeed Studio XIAO nRF52840 Sense board support. (참고: 특정 URL can be found on Seeed Studio's official documentation.)
- 이동하다 도구 > 보드 > 보드 관리자, search for "Seeed Studio nRF52 Boards" and install it.
- 이사회 구성원을 선택하세요: 이동하다 도구 > 보드 and select "Seeed Studio XIAO nRF52840 Sense".
- 포트 선택: 이동하다 도구 > 포트 and select the COM port associated with your XIAO board.
4. 사용 설명서
4.1 코드 업로드
- 스케치를 작성하거나 불러오세요: 전 여는ample sketch or write your own code in the Arduino IDE.
- Verify Code: Click the "Verify" button (checkmark icon) to compile your code and check for errors.
- 업로드 코드: Click the "Upload" button (right arrow icon) to upload the compiled code to your XIAO nRF52840 Sense board.
4.2 Entering DFU Mode (Bootloader)
To upload new firmware or recover the board, you may need to enter DFU (Device Firmware Upgrade) mode:
- Locate the small reset button on the board.
- Double-click the reset button quickly. The onboard LED may change color or blink to indicate DFU mode.
- In DFU mode, a new drive (often labeled "D" or similar) and a COM port should appear on your computer.

4.3 핀 배치도
Refer to the pinout diagram for detailed information on the board's GPIOs, power pins, and peripheral interfaces.

5. 유지관리
- 청소: Use a dry, soft cloth to clean the board. Avoid using liquids or solvents.
- 저장: Store the board in an anti-static bag in a dry environment when not in use.
- 펌웨어 업데이트: Regularly check the official Seeed Studio website for the latest firmware and board support package updates to ensure optimal performance and access to new features.
6. 문제 해결
- Board not recognized / "not in DFU mode" error:
Try connecting the board to a USB 2.0 port instead of a USB 3.0 port. Some users have reported issues with USB 3.0 ports preventing proper DFU mode entry or recognition. Ensure you double-click the reset button to enter DFU mode.
- Upload failures:
Verify that the correct board and COM port are selected in the Arduino IDE. Ensure the board is in DFU mode if required for the upload process. Check your USB cable for proper connection and functionality.
- Board becomes unresponsive or burns out:
Ensure proper power supply. Avoid reverse polarity when connecting external batteries. If using a lithium battery, ensure correct JST cable connection. Over-current or incorrect wiring can damage the board. If issues persist, contact support.
- Difficulty finding resources or documentation:
Refer to the official Seeed Studio documentation and community forums for comprehensive guides and support. 검색 "Seeed Studio XIAO nRF52840 Sense documentation" online.
7. 기술 사양
| 특징 | 세부 사항 |
|---|---|
| 프로세서 | Nordic nRF52840 (64 MHz) |
| 숫양 | LPDDR (256 KB) |
| 플래시 메모리 | 1메가바이트 |
| 무선형 | Bluetooth 5.0, BLE, NFC |
| 운영 체제 지원 | Arduino / CircuitPython |
| 온보드 센서 | Digital Microphone, 6-axis IMU |
| 저전력 모드 | 5 µA (깊은 수면) |
| 치수 | 21 x 17.5mm |
| 품목 무게 | 0.634 온스 |
| 연결 기술 | 블루투스, NFC |
8. 보증 정보
For warranty details and terms, please refer to the official Seeed Studio web사이트를 방문하거나 고객 지원팀에 직접 문의하세요. 보증 청구를 위해 구매 증빙 자료를 보관하세요.
9. 지원 및 리소스
For further assistance, technical documentation, tutorials, and community forums, please visit the official Seeed Studio web대지:
You can also find additional resources and project examples on platforms like Hackaday, Hackster.io, and GitHub by searching for "Seeed Studio XIAO nRF52840 Sense".





