I have revised the Open Wave Height Logger electronics assembly video as of March 2020 to include narration (uh-oh) and more information about the programming process and error codes. This video ...
https://lukemiller.org/index.php/2020/03/updated-owhl-assembly-video/
It’s construction time in the laboratory again. This time we’re building shell gape sensors for oysters, based on a datalogger design derived from the MusselTracker datalogger I designed a fe...
https://lukemiller.org/index.php/2019/05/building-a-new-bivalve-gape-sensor-datalogger/
Design files and code for this project can be found here: https://github.com/millerlp/Time_lapse_arducam The goal of this project was to build a cheap and power-efficient time lapse camera to mon...
https://lukemiller.org/index.php/2016/07/time-lapse-camera-using-arducam/
GetFileAttributesEx D:ArduinolibrariesSdFat/SdInfo.h D:ArduinolibrariesSdFat/SdSpi.h: The filename, directory name, or volume label syntax is incorrect. The error message above started cropping u...
Myself and Jeremy Long recently had a paper published in PeerJ (open access, free to read) describing the use of an Arduino microcontroller to predict tides and regulate the water levels in aquar...
https://lukemiller.org/index.php/2015/11/building-a-simple-tide-clock/
A few years back I posted about a set of Arduino libraries I wrote to allow an Arduino with an attached clock to predict the tides for a coastal site. In that post, I showed a variation on the th...
https://lukemiller.org/index.php/2015/11/controlling-tide-height-in-lab-aquaria/
Here’s the start of a list of common bits and doo-dads I use for building electronics projects. https://github.com/millerlp/parts_guide/blob/master/parts_guide.md That’s all there is to it.
https://lukemiller.org/index.php/2015/04/electronics-parts-list/
I finally got around to deploying a prototype OWHL unit in the real live ocean to log some waves. The low-tech housing is made of 1.5″ schedule 40 pvc pipe. The pipe snugly fits the D-cell batt...
https://lukemiller.org/index.php/2015/03/open-wave-height-logger-prototype-in-the-water/
The Open Wave Height Logger is meant to be a submersible pressure logger that will record absolute pressure at 4Hz for several months to give a record of wave height, and ideally do this on a sin...
https://lukemiller.org/index.php/2014/11/revised-open-wave-height-logger-battery-tests/
Following on the previous post about the Open Wave Height Logger project, I’ve been conducting a simple battery life test. One of the prototype OWHLs was powered by a 3 D-cell alkaline battery ...
https://lukemiller.org/index.php/2014/09/early-open-wave-height-logger-battery-tests/