Introduction

Library for the DPS310 Precision Barometric Pressure Sensor

Dependencies

This driver depends on:

• Adafruit CircuitPython
• Bus Device
• Register

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-dps310

To install system-wide (this may be required in some cases):

sudo pip3 install adafruit-circuitpython-dps310

To 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-dps310

Installing to a connected CircuitPython Device

Some devices, eg. the QT-PY, are very limited in memory. The DPS310 library contains two variants - basic and advanced - which give different levels of functionality.

Installing the DPS310 library could have the following outcomes:

• It installs successfully and your code runs successfully. Woo-hoo! Continue with your amazing project.

• It installs successfully and your code fails to run with a memory allocation error. Try one of the following:

  • If your code.py is large, especially if it has lots of comments, you can shrink it into a .mpy file instead. See the Adafruit Learn Guide on shrinking your code.
  • Only use the basic DPS310 implementation, and remove the following file: <CIRCUITPY>/lib/adafruit_dps310/advanced.mpy where <CIRCUITPY> is the mounted location of your device. Make sure that your code only uses the basic implementation.

Usage Example

import time
import board
from adafruit_dps310.basic import DPS310

i2c = board.I2C()   # uses board.SCL and board.SDA

dps310 = DPS310(i2c)

while True:
    print("Temperature = %.2f *C"%dps310.temperature)
    print("Pressure = %.2f hPa"%dps310.pressure)
    print("")
    time.sleep(1.0)

Known Issues

Library extensive features might not be compatible with memory limited boards. For these kind of boards you need to use the adafruit_dps310/basic.mpy, the file needs to be in the mpy format in order to fit in memory. For boards with more memory available you could use the code present in adafruit_dps310/advanced.py. For usage refer to dps310_simpletest_advanced.py

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.