Smart lighting systems based on the Digital Addressable Lighting Interface (DALI) protocol are the most suitable for street lighting systems, allowing digital lighting control operations. Unfortunately, the microcontrollers, which are commonly used in the Wireless Sensor Network nodes to control the lamps, do not implement this protocol. The DALI protocol implemented by software in the microcontroller consumes hardware resources (timers), processing time and requires a precise temporal analysis of the application, due to the strict bit times and the Manchester coding that it uses. In this work, the design of a bridge is proposed to free the microcontroller from the implementation of the DALI protocol. The novelty of this work is the implementation of the DALI Bridge in a low-cost Field-Programmable Gate Array (FPGA) with low power consumption. The bridge has been described in the hardware description language following the 1076-93 and 1076.3-97 standards, to guarantee its portability. The results of the synthesis show that a minimum amount of logical and routing resources is used, that the power consumption is in the order of tens of mW, that it has a very small latency time and that it supports a high operating frequency, which allows adding new functions. Its operation is verified by implementing a wireless sensor node using an FPGA of the Lattice Semiconductor iCE40 family.

Resumen. Este trabajo expone el análisis, diseño e implementación de un sistema de procesamiento y presentación de datos de presión, flujo y nivel de agua de una Red de Distribución de Agua Potable (RDAP) para su uso en el Internet de las Cosas a través de una placa de desarrollo Intel Galileo. Se establecen los componentes principales del procesamiento del sistema inteligente y los elementos utilizados por la placa de desarrollo Intel Galileo. El diseño y desarrollo del procesamiento de datos se evaluó realizando pruebas de adquisición de voltaje con una fuente variable y se verificaron los resultados experimentales obtenidos. La presentación de datos se compara con los valores esperados en respuesta a la entrada de voltaje en contraste con los datos que se visualizan en un dispositivo LCD (Liquid Crystal Display) y en páginas web apoyándose en tecnologías web como Dweet.io, Freeboard.io y Telegram. Palabras clave: internet de las cosas, placa de desarrollo Intel Galileo, tecnologías web, dweet.io, freeboard.io, telegram. Use of Web Technologies for the Delivery of Sensing Data in a Drinking Water Distribution Network Using the Intel Galileo Development Board Abstract. This work exposes the analysis, design, and implementation of a system that processes and presents the pressure, flow and water level data of a Drinking Water Distribution Network (DWDN) for its use in the Internet of Things through an Intel Galileo development board. The main components for the intelligent system processing and the elements used by the Intel Galileo development board are established. The design and development of data processing was evaluated by performing voltage acquisition tests with a variable voltage source and the experimental results obtained were verified. The presentation of data is compared with the expected values in response to the voltage input in contrast to the 97

The objective of this chapter is to identify web accessibility problems in order to fulfill the design guidelines. According to the proposal, accessibility is assessed through easy checks of the implementation of the social engineering educational platform. As a first phase, the developer carries out this evaluation and his results are analyzed. The second phase solves the identified problems or at least tries to give them a solution implementing a redesign on the platform; in the same way, the results are analyzed. In the third phase, a proposal is made of the improvements that can be introduced in the redesign of the user interface in a way that best complies with the web accessibility. The problem identified shows the difficulty of implementing the accessibility guides and the need to propose accessibility implementation guidelines that guarantee their compliance.