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BackgroundAlthough participatory action research (PAR) studies have proliferated in recent years, the development of technological resources to manage these types of projects has not kept pace. Few studies show how Web-based applications can be used to efficiently manage the data collection process.ObjectiveThis study described the development, use, and impact of a Web-based application to facilitate data management in Niños Sanos, Familia Sana (Healthy Children, Healthy Family), an interventional multifaceted PAR field study.MethodsWe described the transformation of the data management process and evaluated the impact of the application in terms of time efficiency of data collection and engagement of community-based data collectors. We defined time efficiency as the total number of days it took to collect 3 main surveys, per year of data collection. The engagement of data collectors was assessed based on qualitative reports.ResultsThe amount of time it took to perform a round of data collection was reduced after implementation of the field team application (between 382 and 383 days and 198 and 233 days). Secondary data were also collected in a tighter time frame around collection of the primary outcome, and communication among data collectors, the field staff, and the research team was streamlined. In focus groups, community-based data collectors reported feeling more empowered and engaged in the data collection process after implementation of the application.ConclusionsA Web-based management application was successful in improving data collection time efficiency and engagement among data collectors.

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Since we are currently surrounded by IoT systems that communicate wirelessly with each other, it is extremely important to know how they work, how to communicate, and how to manage them so that we can use these systems to their full potential. In this paper we will analyze communication in 433 MHz and 2.4 GHz radio frequencies. 433 MHz frequency communication modules will be compared with 2.4 GHz frequency communication modules both in terms of technical performance and in terms of the electromagnetic radiation they produce.