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The current paper shows the development of a circuit prototype based on PSoC technology, which is used as a signal processing stage in an electronic tongue device with the ability to discriminate and classify samples of raw milk. The electronic tongues consist of electrochemical sensors array based on conductive polymers, a signals processing stage responsible to signal data conversion, and a data processing stage based on multivariate statistical methods (principal component analysis and artificial neuronal networks). To develop the processing signals stage, it is show the development and operation of some blocks involved, where the central element is a PSoC 5 microcontroller. PSoC is an integrated circuit composed of analog and digital blocks into a configurable core, with the use of PSoC microchip, it is possible to develop a portable and small electrochemical device. Some experiments are shown to test the operation of each component of PSoC, and experiments will be made to test the bluetooth communication between the prototype and smartphone. To test the operation of the system, the results obtained will be shown with different experiments with the prototype. Those results will be compared with those of other results obtained in a commercial electrochemical device. To show a preliminary behavior of android application, some experiments will be shown using the smartphone and the prototype. [ABSTRACT FROM AUTHOR]

This paper describes the design, implementation and application of a smart sensor system based in wireless communication protocol, which was developed with the main objective of facilitate the implementation of smart places, whereby monitoring and supervision of environmental physical variables in a residence or commercial buildings. Based in this system, we want to co-help taking advantage and save electric energy, optimizing the use of the lighting systems and air conditioner only in the schedules and under pre-established conditions for the final user. The system is based in a variety of nodes o modules of sensors like temperature, humidity, light, carbon monoxide, noise and LP gas which have the ability to work collaboratively in networks with topologies like star, tree and mesh. [ABSTRACT FROM AUTHOR]