124 lines
3.7 KiB
ReStructuredText
124 lines
3.7 KiB
ReStructuredText
Introduction
|
|
============
|
|
|
|
|
|
.. image:: https://readthedocs.org/projects/adafruit-circuitpython-ina228/badge/?version=latest
|
|
:target: https://docs.circuitpython.org/projects/ina228/en/latest/
|
|
:alt: Documentation Status
|
|
|
|
|
|
.. image:: https://raw.githubusercontent.com/adafruit/Adafruit_CircuitPython_Bundle/main/badges/adafruit_discord.svg
|
|
:target: https://adafru.it/discord
|
|
:alt: Discord
|
|
|
|
|
|
.. image:: https://github.com/adafruit/Adafruit_CircuitPython_INA228/workflows/Build%20CI/badge.svg
|
|
:target: https://github.com/adafruit/Adafruit_CircuitPython_INA228/actions
|
|
:alt: Build Status
|
|
|
|
|
|
.. image:: https://img.shields.io/endpoint?url=https://raw.githubusercontent.com/astral-sh/ruff/main/assets/badge/v2.json
|
|
:target: https://github.com/astral-sh/ruff
|
|
:alt: Code Style: Ruff
|
|
|
|
CircuitPython driver for the INA228 I2C 85V, 20-bit High or Low Side Power Monitor
|
|
|
|
|
|
Dependencies
|
|
=============
|
|
This driver depends on:
|
|
|
|
* `Adafruit CircuitPython <https://github.com/adafruit/circuitpython>`_
|
|
* `Bus Device <https://github.com/adafruit/Adafruit_CircuitPython_BusDevice>`_
|
|
|
|
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>`_.
|
|
|
|
`Purchase one from the Adafruit shop <http://www.adafruit.com/products/5832>`_
|
|
|
|
Installing from PyPI
|
|
=====================
|
|
|
|
On supported GNU/Linux systems like the Raspberry Pi, you can install the driver locally `from
|
|
PyPI <https://pypi.org/project/adafruit-circuitpython-ina228/>`_.
|
|
To install for current user:
|
|
|
|
.. code-block:: shell
|
|
|
|
pip3 install adafruit-circuitpython-ina228
|
|
|
|
To install system-wide (this may be required in some cases):
|
|
|
|
.. code-block:: shell
|
|
|
|
sudo pip3 install adafruit-circuitpython-ina228
|
|
|
|
To install in a virtual environment in your current project:
|
|
|
|
.. code-block:: shell
|
|
|
|
mkdir project-name && cd project-name
|
|
python3 -m venv .venv
|
|
source .env/bin/activate
|
|
pip3 install adafruit-circuitpython-ina228
|
|
|
|
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 adafruit_ina228
|
|
|
|
Or the following command to update an existing version:
|
|
|
|
.. code-block:: shell
|
|
|
|
circup update
|
|
|
|
Usage Example
|
|
=============
|
|
|
|
.. code-block:: python
|
|
|
|
import time
|
|
import board
|
|
import adafruit_ina228
|
|
|
|
i2c = board.I2C()
|
|
ina228 = adafruit_ina228.INA228(i2c)
|
|
|
|
while True:
|
|
print(f"Current: {ina228.current:.2f} mA")
|
|
print(f"Bus Voltage: {ina228.voltage:.2f} V")
|
|
print(f"Shunt Voltage: {ina228.shunt_voltage*1000:.2f} mV")
|
|
print(f"Power: {ina228.power:.2f} mW")
|
|
print(f"Energy: {ina228.energy:.2f} J")
|
|
print(f"Temperature: {ina228.temperature:.2f} °C")
|
|
time.sleep(1)
|
|
|
|
Documentation
|
|
=============
|
|
API documentation for this library can be found on `Read the Docs <https://docs.circuitpython.org/projects/ina228/en/latest/>`_.
|
|
|
|
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/adafruit/Adafruit_CircuitPython_INA228/blob/HEAD/CODE_OF_CONDUCT.md>`_
|
|
before contributing to help this project stay welcoming.
|