Skip to content

Sensirion SHT31-LS library (davis vantage station). Should also work with Sensirion's other SHTxx temp/humidity sensors using their own digital protocol (not i2c).

License

Notifications You must be signed in to change notification settings

HydroSense/sensirion

Repository files navigation

sensirion Temperature / Humidity Sensor Library for Arduino

Copyright 2016 Alan Marchiori amm042@bucknell.edu / http://hydrosense.net

This was forked from the SHT1x library by: Copyright 2009 Jonathan Oxer jon@oxer.com.au / http://www.practicalarduino.com
Copyright 2008 Maurice Ribble ribblem@yahoo.com / http://www.glacialwanderer.com

Most of the documentation and code is from the SHT1x library. Improvements were made to better support the SHT-31-LS device.

Provides a simple interface to the SHT1x series (SHT10, SHT11, SHT15) and SHT7x series (SHT71, SHT75) temperature / humidity sensors from Sensirion, http://www.sensirion.com. These sensors use a "2-wire" communications buss that is similar to I2C and can co-exist on the same physical wire as I2C devices.

Installation

Download the directory "sensirion" and move it into the "libraries" directory inside your sketchbook directory, then restart the Arduino IDE. You will then see it listed under File->Examples->sensirion.

Usage

The library is instantiated as an object with methods provided to read relative humidity and temperature. Include it in your sketch and then create an object, specifying the pins to use for communication with the sensor:

#include <sensirion.h>
#define dataPin 10
#define clockPin 11
SHT1x sensirion(dataPin, clockPin);

You can then call methods on that object within your program. In this example we created an object called "sensirion", but it could have been called whatever you like. A complete example program is included with the library and can be accessed from the File->Examples->sensirion menu.

readTemperatureC()

Returns a float within the valid range of the sensor of -40 to +123.8C. A value of -40 is returned in the event of a communication error with the sensor.

Example:

float tempC = sht1x.readTemperatureC();

readTemperatureF()

Returns a float within the valid range of the sensor of -40 to +254.9F. A value of -40 is returned in the event of a communication error with the sensor.

Example:

float tempF = sht1x.readTemperatureF();

readHumidity()

Returns a float within the valid range of the sensor of 0 to 100%. A negative value is returned in the event of a communication error with the sensor.

Example:

float humidity = sht1x.readHumidity();

About

Sensirion SHT31-LS library (davis vantage station). Should also work with Sensirion's other SHTxx temp/humidity sensors using their own digital protocol (not i2c).

Resources

License

Stars

Watchers

Forks

Releases

No releases published

Packages

No packages published

Languages