py-AHTx0 0.1.1

A library to drive a AHT10 or AHT20 temperature, humidity sensor over I2C

Introduction

Python library using smbus2 for the Adafruit AHT10 or AHT20 Humidity and Temperature Sensor

Based on original solution from Adafruit repo: https://github.com/adafruit/Adafruit_CircuitPython_AHTx0

Dependency lightweight

Dependencies

This library depends on:

• smbus2

Installing from PyPI

On supported GNU/Linux systems like the Raspberry Pi, you can install the library locally from PyPI. To install for current user:

pip3 install pyAHTx0

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

sudo pip3 install pyAHTx0

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 pyAHTx0

Usage Example

import py_AHTx0

# aht10 - init
port = 1
address = 0x38

aht10_sensor = py_AHTx0.AHTx0(port, address)

while True:
    print(aht10_sensor.temperature)
    print(aht10_sensor.relative_humidity)
    time.sleep(2)

Documentation

calibrate() → bool

Ask the sensor to self-calibrate. Returns True on success, False otherwise

property relative_humidity: int

The measured relative humidity in percent.

reset() → None

Perform a soft-reset of the AHT

property status: int

The status byte initially returned from the sensor, see datasheet for details

property temperature: int

The measured temperature in degrees Celsius.