ladyada / adafruit_circuitpython_busdevice

Two helper classes that handle transaction related state for I2C and SPI including locks.

Adafruit CircuitPython BusDevice

The I2CDevice and SPIDevice helper classes make managing transaction state on a bus easy. For example, they manage locking the bus to prevent other concurrent access. For SPI devices, it manages the chip select and protocol changes such as mode. For I2C, it manages the device address.

On supported GNU/Linux systems like the Raspberry Pi, you can install the driver locally from PyPI. To install for current user:

pip3 install adafruit-circuitpython-busdevice

To install system-wide (this may be required in some cases):

sudo pip3 install adafruit-circuitpython-busdevice

To install in a virtual environment in your current project:

mkdir project-name && cd project-name
python3 -m venv .env
source .env/bin/activate
pip3 install adafruit-circuitpython-busdevice

Usage Example

See examples/read_register_i2c.py and examples/read_register_spi.py for examples of the module's usage.

Contributing

Contributions are welcome! Please read our Code of Conduct before contributing to help this project stay welcoming.

Documentation

For information on building library documentation, please check out this guide.