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))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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