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Electronics 2016, 5(3), 54; doi:10.3390/electronics5030054

Building IoT Applications with Raspberry Pi and Low Power IQRF Communication Modules

1
Department of Systems Engineering and Automatic Control, University of the Basque Country (UPV/EHU), E.U.I. of Vitoria-Gasteiz, Nieves Cano, 12, 01006 Vitoria-Gasteiz, Spain
2
Department of Electronic Technology, University of the Basque Country (UPV/EHU), E.U.I. of Vitoria-Gasteiz, Nieves Cano, 12, 01006 Vitoria-Gasteiz, Spain
*
Authors to whom correspondence should be addressed.
Academic Editors: Steven J. Johnston and Simon J. Cox
Received: 16 May 2016 / Revised: 18 August 2016 / Accepted: 1 September 2016 / Published: 8 September 2016
(This article belongs to the Special Issue Raspberry Pi Technology)
View Full-Text   |   Download PDF [5394 KB, uploaded 8 September 2016]   |  

Abstract

Typical Internet of Things (IoT) applications involve collecting information automatically from diverse geographically-distributed smart sensors and concentrating the information into more powerful computers. The Raspberry Pi platform has become a very interesting choice for IoT applications for several reasons: (1) good computing power/cost ratio; (2) high availability; it has become a de facto hardware standard; and (3) ease of use; it is based on operating systems with a big community of users. In IoT applications, data are frequently carried by means of wireless sensor networks in which energy consumption is a key issue. Energy consumption is especially relevant for smart sensors that are scattered over wide geographical areas and may need to work unattended on batteries for long intervals of time. In this scenario, it is convenient to ease the construction of IoT applications while keeping energy consumption to a minimum at the sensors. This work proposes a possible gateway implementation with specific technologies. It solves the following research question: how to build gateways for IoT applications with Raspberry Pi and low power IQRF communication modules. The following contributions are presented: (1) one architecture for IoT gateways that integrates data from sensor nodes into a higher level application based on low-cost/low-energy technologies; (2) bindings in Java and C that ease the construction of IoT applications; (3) an empirical model that describes the consumption of the communications at the nodes (smart sensors) and allows scaling their batteries; and (4) validation of the proposed energy model at the battery-operated nodes. View Full-Text
Keywords: IoT gateways; IoT applications and drivers; Wireless Sensor Networks (WSN); low power solutions; remote sensing; IQRF; energy consumption model IoT gateways; IoT applications and drivers; Wireless Sensor Networks (WSN); low power solutions; remote sensing; IQRF; energy consumption model
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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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MDPI and ACS Style

Calvo, I.; Gil-García, J.M.; Recio, I.; López, A.; Quesada, J. Building IoT Applications with Raspberry Pi and Low Power IQRF Communication Modules. Electronics 2016, 5, 54.

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