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Python driver to work with the Sensirion's SFC6xxx mass flow controller or SFM6xxx sensor via I2C

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Sensirion/python-i2c-sfx6xxx

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Python I2C Driver for Sensirion SFX6XXX

This repository contains the Python driver to communicate with a Sensirion sensor of the SFX6XXX family over I2C.

SFX6XXX picture

Click here to learn more about the Sensirion SFX6XXX sensor family.

Supported sensor types

Sensor name I²C Addresses
SFC6000 0x24, 0x23, 0x22, 0x21, 0x20, 0x42, 0x41
SFC6000D-5SLM ****
SFC6000D-50SLM ****
SFC6000D-20SLM ****
SFM6000 0x24, 0x23, 0x22, 0x21, 0x20, 0x42, 0x41
SFM6000D-20SLM ****
SFM6000D-50SLM ****
SFM6000D-5SLM ****

The following instructions and examples use a SFC6000.

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 red VDD Supply Voltage +24V
2 black GND Ground
3 NC Do not connect
4 yellow SCL I2C: Serial clock input
5 purple ADDR Leave floating for default i2c address 0x24
6 green SDA I2C: Serial data input / output

Documentation & Quickstart

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

Contributing

We develop and test this driver using our company internal tools (version control, continuous integration, code review etc.) and automatically synchronize the master branch with GitHub. But this doesn't mean that we don't respond to issues or don't accept pull requests on GitHub. In fact, you're very welcome to open issues or create pull requests :-)

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.