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Provides access to onboard sensors and battery charge management circuitry

Dependencies

This driver depends on:

• Adafruit CircuitPython <https://github.com/adafruit/circuitpython>_
• Adafruit's LSM6DS library: <https://github.com/adafruit/Adafruit_CircuitPython_LSM6DS>_

Please ensure all dependencies are available on the CircuitPython filesystem. This is easily achieved by downloading the Adafruit library and driver bundle <https://circuitpython.org/libraries>_ or individual libraries can be installed using circup <https://github.com/adafruit/circup>_.

Installing to a Connected CircuitPython Device with Circup

Make sure that you have circup installed in your Python environment. Install it with the following command if necessary:

.. code-block:: shell

pip3 install circup

With circup installed and your CircuitPython device connected use the following command to install:

.. code-block:: shell

circup install seeed_xiao_nrf52840

Or the following command to update an existing version:

.. code-block:: shell

circup update

Usage Example

.. code-block:: python

import array
import time

import audiocore
import audiopwmio
import board

from seeed_xiao_nrf52840 import IMU, Mic, Battery

with Battery() as bat:
    print(f"Charge_status: {bat.charge_status}")
    print(f"Voltage: {bat.voltage}")
    print(f"Charge_current high?: {bat.charge_current}")
    print("Setting charge current to high")
    bat.charge_current = bat.CHARGE_100MA
    print(f"Charge_current high?: {bat.charge_current}")

with IMU() as imu:
    for i in range(5):
        print("Acceleration:", imu.acceleration)
        time.sleep(1)

with Mic() as mic:
    for i in range(5):
        print(f"Start speaking in: {5-i}")
        time.sleep(1)
    b = array.array("H")
    for i in range(8000):
        b.append(0)
    print("SPEAK!!!")
    mic.record(b, len(b))
    print(b)
    for i in range(5):
        print(f"Replaying in: {5-i}")
        time.sleep(1)
    with audiopwmio.PWMAudioOut(board.D0) as aud:
        print("PWM setup")
        sample = audiocore.RawSample(b, sample_rate=8000)
        print("sample ready")
        aud.play(sample,loop=True)
        print("playing")
        time.sleep(5)
        aud.stop()

Documentation

API documentation for this library can be found on Read the Docs <https://circuitpython-seeed-xiao-nrf52840.readthedocs.io/>_.

For information on building library documentation, please check out this guide <https://learn.adafruit.com/creating-and-sharing-a-circuitpython-library/sharing-our-docs-on-readthedocs#sphinx-5-1>_.

Contributing

Contributions are welcome! Please read our Code of Conduct <https://github.com/furbrain/CircuitPython_seeed_xiao_nRF52840/blob/HEAD/CODE_OF_CONDUCT.md>_ before contributing to help this project stay welcoming.