======== rpisht1x
Python SHT1x sensor code (forked from https://bitbucket.org/lunobili/rpisht1x.git)
This module reads Humidity and Temperature from a Sensirion SHT1x sensor. It has been tested both with an SHT11 and an SHT15. Unfortunately this sensor uses a proprietary protocol that is not compatible with the I2C or SMBus standards. (ie, the protocol abuses the stop-bit). Fortunately there's a decent workaround in the VCT fork of RPi.GPIO which correctly releases the pins under most conditions.
It is meant to be used in a Raspberry Pi and depends on this module (http://pypi.python.org/pypi/RPi.GPIO).
The module raspberry-gpio-python requires root privileges, therefore, to run this module you need to run your script as root.
This a Python/Raspberry Pi port of this library: https://github.com/practicalarduino/SHT1x
Example Usage::
from sht1x.Sht1x import Sht1x as SHT1x
dataPin = 11
clkPin = 7
sht1x = SHT1x(dataPin, clkPin, SHT1x.GPIO_BOARD)
temperature = sht1x.read_temperature_C()
humidity = sht1x.read_humidity()
dewPoint = sht1x.calculate_dew_point(temperature, humidity)
print("Temperature: {} Humidity: {} Dew Point: {}".format(temperature, humidity, dewPoint))
Release Notes
-
v1.2, 31/12/2012 -- Added the possibility to define the GPIO mode (GPIO_BOARD or GPIO_BCM) in the constructor. This is to make sure that this library plays nicely with other libraries that might rely on a specific mode. If no mode is provided, the constructor will default to the GPIO_BOARD mode. Thanks to Daniël van Eeden for suggestiong this improvement.
-
v1.1, 26/10/2012 -- Added WaitingSht1x, dew point calculation and using v4 constants. WaitingSht1x makes sure that no more than a query per second is performed on the sensor. This is in order to prevent the sensor from heating and skewing the temperature readings.
-
v1.0, 7/10/2012 -- Initial release.