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-ccs811
To install system-wide (this may be required in some cases):
sudo pip3 install adafruit-circuitpython-ccs811
To 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-ccs811
Usage Notes¶
See the guide for wiring and installation instructions.
Of course, you must import the library to use it:
import busio
import adafruit_ccs811
Next, initialize the I2C bus object.
from board import *
i2c = board.I2C() # uses board.SCL and board.SDA
Once you have created the I2C interface object, you can use it to instantiate the CCS811 object
ccs = adafruit_ccs811.CCS811(i2c)
Reading Sensor¶
To read the gas sensor simply read the attributes:
print("CO2: ", ccs.eco2, " TVOC:", ccs.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.