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Sensors 2016, 16(4), 528; doi:10.3390/s16040528

Development of a Low-Cost Arduino-Based Sonde for Coastal Applications

1
Dauphin Island Sea Lab., 101 Bienville Blvd., Dauphin Island, AL 36528, USA
2
Department of Marine Sciences, University of South Alabama, Life Sciences Building Room 25, Mobile, AL 36688, USA
*
Author to whom correspondence should be addressed.
Academic Editor: Vittorio M. N. Passaro
Received: 22 February 2016 / Revised: 31 March 2016 / Accepted: 7 April 2016 / Published: 13 April 2016
(This article belongs to the Section Physical Sensors)
View Full-Text   |   Download PDF [3387 KB, uploaded 13 April 2016]   |  

Abstract

This project addresses the need for an expansion in the monitoring of marine environments by providing a detailed description of a low cost, robust, user friendly sonde, built on Arduino Mega 2560 (Mega) and Arduino Uno (Uno) platforms. The sonde can be made without specialized tools or training and can be easily modified to meet individual application requirements. The platform allows for internal logging of multiple parameters of which conductivity, temperature, and GPS position are demonstrated. Two design configurations for different coastal hydrographic applications are highlighted to show the robust and versatile nature of this sensor platform. The initial sonde design was intended for use on a Lagrangian style surface drifter that recorded measurements of temperature; salinity; and position for a deployment duration of less than 24 h. Functional testing of the sensor consisted of a 55 h comparison with a regularly maintained water quality sensor (i.e., YSI 6600 sonde) in Mobile Bay, AL. The temperature and salinity data were highly correlated and had acceptable RMS errors of 0.154 °C and 1.35 psu for the environmental conditions. A second application using the sonde platform was designed for longer duration (~3–4 weeks); subsurface (1.5–4.0 m depths) deployment, moored to permanent structures. Design alterations reflected an emphasis on minimizing power consumption, which included the elimination of the GPS capabilities, increased battery capacity, and power-saving software modifications. The sonde designs presented serve as templates that will expand the hydrographic measurement capabilities of ocean scientists, students, and teachers. View Full-Text
Keywords: Arduino; drifter; data logger; CTD; physical sampling; Mobile Bay; marine; low-cost Arduino; drifter; data logger; CTD; physical sampling; Mobile Bay; marine; low-cost
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This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. (CC BY 4.0).

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Lockridge, G.; Dzwonkowski, B.; Nelson, R.; Powers, S. Development of a Low-Cost Arduino-Based Sonde for Coastal Applications. Sensors 2016, 16, 528.

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