embedded-sht

This repository contains the embedded driver sources for Sensirion's SHT product line.

Download the Latest Driver Release

Download the latest ready-to-use driver bundle from the releases page

We strongly recommend to use the driver from the release bundle instead of cloning the repository.

Clone this repository

 git clone --recursive https://github.com/Sensirion/embedded-sht.git

Repository content

embedded-common submodule repository for the common embedded driver HAL
sht-common common files for all SHTxx drivers, humidity conversion functions
sht4x SHT4 driver
sht3x SHT3x/SHT8x driver
shtc1 SHTC3/SHTC1/SHTW1/SHTW2 driver
utils Conversion functions (Centigrade to Fahrenheit, %RH relative humidity to aboslute humidity)

For sht3x and sht4x there are also updated drivers available in separate repositories.

Collecting resources

make release

This will create the release folder with the necessary driver files in it, including a Makefile. That way, you have just ONE folder with all the sources ready to build your driver for your platform.

Files to adjust (from embedded-common)

You only need to touch the following files:

sensirion_arch_config.h (architecture specifics, you need to specify the integer sizes)

and depending on your i2c implementation either of the following:

embedded-common/hw_i2c/sensirion_hw_i2c_implementation.c functions for hardware i2c communication if your platform supports that
embedded-common/sw_i2c/sensirion_sw_i2c_implementation.c functions for software i2c communication via GPIOs

Building the driver

Adjust sensirion_arch_config.h if you don't have the <stdint.h> header file available
Implement necessary functions in one of the *_implementation.c files described above
make

Please check the embedded-common repository for further information and sample implementations.