Introduction
Driver for Sensirion SCD4X CO2 sensor
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 or individual libraries can be installed using circup.
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-scd4xTo install system-wide (this may be required in some cases):
sudo pip3 install adafruit-circuitpython-scd4xTo install in a virtual environment in your current project:
mkdir project-name && cd project-name
python3 -m venv .venv
source .venv/bin/activate
pip3 install adafruit-circuitpython-scd4xInstalling to a Connected CircuitPython Device with Circup
Make sure that you have circup installed in your Python environment. Install it with the following command if necessary:
pip3 install circupWith circup installed and your CircuitPython device connected use the following command to install:
circup install adafruit_scd4xOr the following command to update an existing version:
circup updateUsage Example
import time
import board
import adafruit_scd4x
i2c = board.I2C()
scd4x = adafruit_scd4x.SCD4X(i2c)
print("Serial number:", [hex(i) for i in scd4x.serial_number])
scd4x.start_periodic_measurement()
print("Waiting for first measurement....")
while True:
if scd4x.data_ready:
print("CO2: %d ppm" % scd4x.CO2)
print("Temperature: %0.1f *C" % scd4x.temperature)
print("Humidity: %0.1f %%" % scd4x.relative_humidity)
print()
time.sleep(1)Documentation
API documentation for this library can be found on Read the Docs.
For information on building library documentation, please check out this guide.
Contributing
Contributions are welcome! Please read our Code of Conduct before contributing to help this project stay welcoming.
1 maintainer
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