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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 <code><a href="https://github.com/Sensirion/embedded-i2c-sht3x">sht3x</a></code> and <code><a href="https://github.com/Sensirion/embedded-i2c-sht4x">sht4x</a></code> 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

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

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