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Python I2C Driver for Sensirion SFA4X

This repository contains the Python driver to communicate with a Sensirion SFA40 sensor over I2C.

SFA4X picture

Click here to learn more about the Sensirion SFA40 sensor.

Not all sensors of this driver family support all measurements. In case a measurement is not supported by all sensors, the products that support it are listed in the API description.

The default I²C address of SFA40 is 0x5d.

Connect the sensor

You can connect your sensor over a SEK-SensorBridge. For special setups you find the sensor pinout in the section below.

Sensor pinout

sensor wiring picture

Pin Cable Color Name Description Comments
1 black GND Ground
2 red VDD Supply Voltage 1.62V to 3.6V
3 blue SDA I2C: Serial data input / output
4 yellow SCL I2C: Serial clock input

Documentation & Quickstart

See the documentation page for an API description and a quickstart example.

Contributing

Check coding style

The coding style can be checked with flake8:

pip install -e .[test]  # Install requirements
flake8                  # Run style check

In addition, we check the formatting of files with editorconfig-checker:

pip install editorconfig-checker==2.0.3   # Install requirements
editorconfig-checker                      # Run check

License

See LICENSE.

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