CircuitPython library for SI7021 Temperature and Humidity Sensor.
Project description
Introduction
CircuitPython module for use with the SI7021 Temperature and Humidity 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.
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-si7021To install system-wide (this may be required in some cases):
sudo pip3 install adafruit-circuitpython-si7021To 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-si7021Usage Notes
Of course, you must import the library to use it:
import adafruit_si7021This driver takes an instantiated and active I2C object (from the busio or the bitbangio library) as an argument to its constructor. The way to create an I2C object depends on the board you are using. For boards with labeled SCL and SDA pins, you can:
from busio import I2C
from board import SCL, SDA
i2c = I2C(SCL, SDA)Once you have created the I2C interface object, you can use it to instantiate the sensor object:
sensor = adafruit_si7021.SI7021(i2c)And then you can start measuring the temperature and humidity:
print(sensor.temperature)
print(sensor.relative_humidity)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.
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