O ensino de física com aplicações tecnológicas:

Abstract

The present work describes the construction and application of an educati- onal product composed of an experimental system, to assist and motivate and

in practical classes of electricity, magnetism and electromagnetism at the high school level and graduation in Physics, together with a textbook of didactic purposes for the basic description of the physical phenomena involved with the experimental system. The experimental system consists of groups of automatic irrigation systems based on soil moisture sensors, connected to microcontrollers that activate small or medium-sized hydraulic pumps, through relays, when the humidity is below an established value. In this system, a concept of innovation was introduced, adding Xbee-type radio wave transceiver modules to each automatic irrigation system, in order to establish a telecommunication network between them, which is controlled by a software called NI-Labview. installed on a PC or notebook, which also has a transceiver. The set forms a local area network (LAN), thus making the communication between the modules. For the implementation of the system, a prototyping platform, Arduino, with free access was used. The communication between the Xbee modules was done using the Zigbee protocol. The educational product is presented on a small scale oriented mainly for didactic and educational purposes when employed in teaching didactic laboratories. The product will be used to demonstrate the interdisciplinarity of physics with other areas of knowledge and to motivate their learning.