Manage the Seeed Xiao nRF52840 boards

The Seeed platform includes two main lines of boards: the compact Xiao and the Wio Terminal.

Warning

The software for the Seeed Xiao nRF51840 board is not stable enough. Support has been put on hold.

Install the Seeed Xiao nRF52840

To install the Seeed Xiao nRF52840 board,

• Ensure the Arduino tools, CLI or IDE, are installed.

• Ensure the arduino-cli.yaml configuration file for Arduino-CLI or the Additional boards manager URLs for Arduino IDE includes

https://files.seeedstudio.com/arduino/package_seeeduino_boards_index.json```

• Open a Terminal window.

• Run

arduino-cli core install Seeeduino:nrf52@1.1.1

Warning

Release 1.1.3 does not work. Use release 1.1.1 instead.

To install the library for Bluetooth, run

arduino-cli lib install ArduinoBLE

Develop

Use the built-in LEDs

Built-in LEDs use reverse logic.

• LOW to turn them on;
• HIGH to turn them off.

Use the libraries for Serial port

• Edit the main Makefile to list the required libraries for the serial port.

APP_LIBS_LIST += Adafruit_TinyUSB_Arduino

• Add to the main sketch

#include "Adafruit_TinyUSB.h"

Use the libraries for IMU

• Edit the main Makefile to list the required libraries for the LSM6DS3.

USER_LIBS_LIST = Seeed_Arduino_LSM6DS3

Use the libraries for microphone

• Add to the main sketch.

USER_LIBS_LIST = Seeed_Arduino_Mic

Use the libraries for Bluetooth

• Edit the main Makefile to list the required libraries.

USER_LIBS_LIST = ArduinoBLE

Use the libraries for SD

Debug

Critical

Using the Xiao M0 as DAP-Link probe does not work. Use instead the Segger J-Link probe.