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Sensirion I2C SEN44 Arduino Library
This is the Sensirion SEN44 library for Arduino using the modules I2C interface.
<center><img src="images/SEN4x.png" width="500px"></center>Installation
To install, download the latest release as .zip file and add it to your Arduino IDE via
Sketch => Include Library => Add .ZIP Library...
Don't forget to install the dependencies listed below the same way via Add .ZIP Library
Note: Installation via the Arduino Library Manager is coming soon.
Dependencies
Quick Start
-
Connect the SEN44 Sensor to your Arduino board's standard I2C bus. Check the pinout of your Arduino board to find the correct pins. The pinout of the SEN44 Sensor module can be found in the data sheet and here:
<center><img src="images/SEN44_pinout.png" width="300px"></center>SEN44 Arduino Jumper Wire VCC 5V Red GND GND Black SDA SDA Green SCL SCL Yellow SEL GND for I2C Blue Pin Name Description Comments 1 VDD Supply Voltage 5V ±10% 2 GND Ground 3 RX UART: Receiving pin for communication TTL 5V and LVTTL 3.3V compatible SDA I2C: Serial data input / output TTL 5V and LVTTL 3.3V compatible 4 TX UART: Transmission pin for communication TTL 5V and LVTTL 3.3V compatible SCL I2C: Serial clock input TTL 5V and LVTTL 3.3V compatible 5 SEL Interface select Leave floating or pull to VDD to select UART Pull to GND to select I2C 6 NC Do not connect -
Open the
exampleUsage
sample project within the Arduino IDEFile => Examples => Sensirion I2C SEN44 => exampleUsage
-
Click the
Upload
button in the Arduino IDE orSketch => Upload
-
When the upload process has finished, open the
Serial Monitor
orSerial Plotter
via theTools
menu to observe the measurement values. Note that theBaud Rate
in the corresponding window has to be set to115200 baud
.
Contributing
Contributions are welcome!
We develop and test this driver using our company internal tools (version control, continuous integration, code review etc.) and automatically synchronize the master branch with GitHub. But this doesn't mean that we don't respond to issues or don't accept pull requests on GitHub. In fact, you're very welcome to open issues or create pull requests :)
This Sensirion library uses
clang-format
to standardize the formatting of all our .cpp
and .h
files. Make sure your contributions are formatted accordingly:
The -i
flag will apply the format changes to the files listed.
clang-format -i src/*.cpp src/*.h
Note that differences from this formatting will result in a failed build until they are fixed.
License
See LICENSE.