Python I2C Driver for Sensirion SCD30
August 22, 2025 · View on GitHub
This repository contains the Python driver to communicate with a Sensirion SCD30 sensor over I2C.
Click here to learn more about the Sensirion SCD30 sensor.
The default I²C address of SCD30 is 0x61.
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 | red | VDD | Supply Voltage | 3.3V to 5.5V |
| 2 | black | GND | Ground | |
| 3 | yellow | SCL | I2C: Serial clock input | |
| 4 | green | SDA | I2C: Serial data input / output | |
| 5 | RDY | High when data is available - do not connect | ||
| 6 | PWM | do not connect | ||
| 7 | blue | SEL | Interface select | Pull to ground or floating for I2C |
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.