adafruit-circuitpython-sht31d

Introduction

CircuitPython module for the SHT31-D 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-sht31d

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

sudo pip3 install adafruit-circuitpython-sht31d

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-sht31d

Usage Example

You must import the library to use it:

import adafruit_sht31d

This 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.

import board

i2c = board.I2C()

Once you have created the I2C interface object, you can use it to instantiate the sensor object:

sensor = adafruit_sht31d.SHT31D(i2c)

And then you can start measuring the temperature and humidity:

print(sensor.temperature)
print(sensor.relative_humidity)

You can instruct the sensor to periodically measure the temperature and humidity, storing the result in its internal cache:

sensor.mode = adafruit_sht31d.MODE_PERIODIC

You can adjust the frequency at which the sensor periodically gathers data to: 0.5, 1, 2, 4 or 10 Hz. The following adjusts the frequency to 2 Hz:

sensor.frequency = adafruit_sht31d.FREQUENCY_2

The sensor is capable of storing eight results. The sensor stores these results in an internal FILO cache. Retrieving these results is simlilar to taking a measurement. The sensor clears its cache once the stored data is read. The sensor always returns eight data points. The list of results is backfilled with the maximum output values of 130.0 ºC and 100.01831417975366 % RH:

print(sensor.temperature)
print(sensor.relative_humidity)

The sensor will continue to collect data at the set interval until it is returned to single shot data acquisition mode:

sensor.mode = adafruit_sht31d.MODE_SINGLE

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.

Release files for adafruit-circuitpython-sht31d 2.3.31

For a detailed explanation of source distributions (sdists) and built distributions (wheels), please see the package formats documentation.

Source distribution (sdist)

Source distribution for adafruit-circuitpython-sht31d 2.3.31
File	Size	Uploaded
adafruit_circuitpython_sht31d-2.3.31.tar.gz	26.0 kB	Apr 23, 2026	Details

Built distribution (wheel)

Table of built distributions (wheels) for adafruit-circuitpython-sht31d 2.3.31
File	Interpreter	ABI	Platform	Reset
adafruit_circuitpython_sht31d-2.3.31-py3-none-any.whl 7.7 kB Apr 23, 2026	Python 3	none	any	Details

Total release size: 33.7 kB

Release files / adafruit_circuitpython_sht31d-2.3.31.tar.gz

Download URL	adafruit_circuitpython_sht31d-2.3.31.tar.gz
Size	26.0 kB
Tags	Source
SHA-256 checksum How to use checksums	`1e05acfff571993fed0d677cd9598630155c0d145b5c50dcb6d3f1f43a74f8ff`
BLAKE2b-256 checksum How to use checksums	`75f33b3b3a77280f2d2fddf3ef19cbfabd7bd474976a126b73dff49f1d00ffe8`
Upload date	Apr 23, 2026
Uploaded using Trusted Publishing? What is trusted publishing?	No
Uploaded via	`twine/6.2.0 CPython/3.11.15`

Release files / adafruit_circuitpython_sht31d-2.3.31-py3-none-any.whl

Download URL	adafruit_circuitpython_sht31d-2.3.31-py3-none-any.whl
Size	7.7 kB
Tags	Python 3
SHA-256 checksum How to use checksums	`3ef8c83f54ef6f487fdcc98865db17d8a19b2b9e424778870b615260e1de80b8`
BLAKE2b-256 checksum How to use checksums	`a975146b6c4878ae08283c42facb55be6c5a68aa5d74d0b29d6b6973e4c0629d`
Upload date	Apr 23, 2026
Uploaded using Trusted Publishing? What is trusted publishing?	No
Uploaded via	`twine/6.2.0 CPython/3.11.15`