CircuitPython library for Sensirion SGP30 gas sensor with eCO2 and TVOC.
Project description
Introduction
A CircuitPython driver for the Sensirion SGP30 gas sensor with eCO2 and TVOC output. This sensor uses I2C!
Installation and Dependencies
This driver depends on:
Please ensure all dependencies are available on the CircuitPython filesystem. This is easily achieved by downloading the Adafruit library and driver bundle.
Installing from PyPI
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-sgp30To install system-wide (this may be required in some cases):
sudo pip3 install adafruit-circuitpython-sgp30To 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-sgp30Usage Notes
See the guide for wiring and installation instructions.
First, import the library:
import busio
import adafruit_sgp30Next, initialize the I2C bus object:
import board
i2c_bus = busio.I2C(board.SCL, board.SDA, frequency=100000)Since we have the I2C bus object, we can now use it to instantiate the SGP30 object:
sgp30 = adafruit_sgp30.Adafruit_SGP30(i2c_bus)Reading from the Sensor
To read from the sensor:
eCO2, TVOC = sgp30.iaq_measure()
print("eCO2 = %d ppm \t TVOC = %d ppb" % (eCO2, TVOC))Documentation
API documentation for this library can be found on Read the Docs.
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.
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