Python I2C Driver for Sensirion SCD4X

This repository contains the Python driver to communicate with a Sensirion sensor of the SCD4X family over I2C.

Click here to learn more about the Sensirion SCD4X sensor family.

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.

Supported sensor types

Sensor name	I²C Addresses
SCD40	0x62
SCD41	0x62
SCD42	0x62
SCD43	0x62

The following instructions and examples use a SCD43.

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

Pin	Cable Color	Name	Description	Comments
1	black	GND	Ground
2	red	VDD	Supply Voltage	2.4V to 5.5V
3	green or 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.