OWHL - Open Wave Height Logger

The code in this repository runs a pressure sensor data logger that can be used to log wave heights over long periods of time. It is meant to be placed in 10m of water, where it then records pressure via a MS5803 pressure sensor and writes to a microSD card. See http://lukemiller.org/index.php/2014/08/open-wave-height-logger/ for more information.

Directories

• OWHL - This contains the Arduino OWHL.ino file to run the Open Wave Height Logger. This directory should be placed in your Arduino folder where your other sketches are normally stored.

• boards_txt_entry - This contains a text file whose contents should be copied and pasted into the standard Arduino boards.txt file, which is typically found in the hardware/arduino/ directory.

• Eagle_files - This directory contains Eagle CAD designs for the OWHL printed circuit boards.

External libraries

To make the OWHL run properly, you need to install one of the MS5803 pressure sensor libraries I have written. They are contained in separate repositories for each model. Choose the appropriate repository that matches your sensor's pressure range, and install the library contents in the Arduino/libraries/ directory.

• MS5803-01BA: http://github.com/millerlp/MS5803_01
• MS5803-02BA: http://github.com/millerlp/MS5803_02
• MS5803-05BA: http://github.com/millerlp/MS5803_05
• MS5803-14BA: http://github.com/millerlp/MS5803_14
• MS5803-30BA: http://github.com/millerlp/MS5803_30

You also need the real time clock library and SdFat library.

• RTClib: https://github.com/mizraith/RTClib
• SdFat: https://github.com/greiman/SdFat

Developed under Arduino v1.0.5-r2.