qubitqualia / sht3x-dis_humidity_temperature_sensor

Python API for Sensirion humidity and temperature sensor (I2C)

Python (>3.6) API for Sensirion humidity and temperature sensor SHT3x-DIS which has I2C communication

Basic Usage

Instantiate sensor object:

import sht3xdis
sensor = sht3xdis.TempHumiditySensor(1, 0x44)

Set sensor acquisition mode:

sensor.set_mode("single-shot", acc="high", blocking=True)

Accuracy can be set to "low", "med" or "high", Blocking set to True waits for sensor reading to become available before proceeding

sensor.set_mode("periodic", rate=4, acc="high")

Sampling rate on-board sensor can be 0.5, 1, 4 or 10 Hz

Start sample acquisition on sensor:

# Single-shot mode (non-blocking)
sensor.init_read()
while True:
  if sensor.isready():
    data = get_sample(degf=True)
    temp = data[0]
    rh = data[1]
    sensor.init_read()
  
# Single-shot mode (blocking)
sensor.init_read()
data = sensor.get_sample(degf=True)
  
# Periodic mode
sensor.init_read()
while True:
    data = sensor.get_sample(degf=True)   

Data Logging

API includes logging features for logging temperature and humidity data to file or SQL database

Log to file

sensor.start_logging_file()

Add file path to TempHumiditySensor.LOGGING_PATH

Log to MySQL

sensor.start_logging_sql('192.168.1.1', 3306, "sampledatabase", "sampletable", 60)

Add MySQL credentials to my.cnf and set path TempHumiditySensor.SQL_CREDS_PATH

Command-line script for exporting MySQL sensor data

Usage example: sensor_data_export.py -f <path-to-outfile> -t <table> --maxsamples 1000