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dc.contributor.authorVilloro, Antonioes_ES
dc.contributor.authorLatorre Garcés, Borjaes_ES
dc.contributor.authorTormo, Jaumees_ES
dc.contributor.authorJiménez, Juan J.es_ES
dc.contributor.authorLópez Sánchez, María Victoriaes_ES
dc.contributor.authorNicolau, José Manueles_ES
dc.contributor.authorVicente, Josées_ES
dc.contributor.authorGracia Ballarín, Ricardoes_ES
dc.contributor.authorMoret-Fernández, Davides_ES
dc.identifier.citationVilloro A, Latorre B, Tormo J, Jiménez JJ, López MV, Nicolau JM, Vicente J, Gracia R, Moret-Fernández D. A TDR wireless device for volumetric water content sensing. Computers and Electronics in Agriculture 181: 105939 (2021)es_ES
dc.description12 Pags.- 2 Figs. The definitive version is available at: https://www.sciencedirect.com/science/journal/01681699es_ES
dc.description.abstractTime Domain Reflectometry (TDR) is a widely used technique to estimate the soil volumetric water content (θ) and bulk electrical conductivity (σ). This paper presents TDR-WiFi, a wireless, portable and low cost interface to ease sensing of θ and σ by connecting TDR cable tester with a smartphone. TDR-WiFi consists of a microprocessor equipped with a WiFi microcontroller (M5Stack unit) and connected to the TDR device through an RS232-TTL adapter. The M5stack firmware is programmed in MicroPython language to act as a server between the user and the TDR device through a web page accessible from any smartphone web browser. TDR-WiFi is compatible with the Campbell TDR100 device and allows storing the TDR waveforms as well as estimating θ and σ. A complementary web page for subsequent analysis of the TDR waveforms was developed and is publicly available at http://swi.csic.es/tdrwifi/. The system was satisfactorily demonstrated in laboratory and tested in the field. The field trial allowed water content measurements in a steep road slope. TDR-WiFi demonstrated to be operative in the field and it can be satisfactorily used in difficult access areas.es_ES
dc.description.sponsorshipThis research was supported by the Ministerio de Educación y Ciencia of Spain (Grant 200840I214), MITECO project ASBIO (PGC2018-094332-B-100).es_ES
dc.subjectTime domain reflectometryes_ES
dc.subjectCable testeres_ES
dc.subjectApparent permittivityes_ES
dc.subjectSoil water estimationes_ES
dc.titleA TDR wireless device for volumetric water content sensinges_ES
dc.description.peerreviewedPeer reviewedes_ES
dc.contributor.funderMinisterio de Ciencia, Innovación y Universidades (España)es_ES
oprm.item.hasRevisionno ko 0 false*
dc.contributor.orcidLatorre Garcés, Borja [0000-0002-6720-3326]es_ES
dc.contributor.orcidLópez Sánchez, María Victoria [0000-0003-4113-0381]es_ES
dc.contributor.orcidMoret-Fernández, David [0000-0002-6674-0453]es_ES
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