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Project based learning experiences for embedded systems design
Abstract
This article presents the contents and the teaching and evaluation methods for a required course dealing with the design of real time embedded systems based on microprocessors given during the last years of an undergraduate degree for Telecommunications Engineering. The method used were project-based-learning and the evaluation was based on learned skills. In closing, this article will reflect on how well this course achieved its goals.
... The method used was project-based learning and assessment was based on the skills learned. Finally, the article reflects on how well the course has achieved its objectives using a project-oriented approach [7]. ...
... In recent years, there are several methods to approach electronic engineering, the majority of them focusing on motivating students to learn [14][15]. Videos demonstrating phenomena, as well as free and web-based interactive simulators, have been applied in teaching, with fruitful and promising results [16]. ...
The courses and disciplines in the exact sciences are based on practical work (PW) which complements the theoretical teaching. Remote Labs are a recent approach used for educating experimental manipulations by using the performance of information and communication technologies. This work aims to propose the design of an IoT system allowing several remote manipulations in analog electronics. This solution is mainly based on the Red Pitaya STEMLab board, in particular for communication and remote control for measurements and data acquisition through different protocols. The low-cost system provides an intelligent selection between the different integrated practical works on a developed board, as well as other ones carried out externally as extensions according to the professor's needs. The analysis of the integrated manipulations was done taking into account the minimum latency of the remote control as well as its portability to save time, space, and money without loss of quality and quantity. The presented results relate to a PW of analog electronics, a “RC charging and discharging circuit” has been considered for a comparison of this Remote system with the same PW performed by the classical method "hands-on laboratory". Our purpose in this study is the development of a control system to maximize the available resource as well as to improve self-learning ability in the electronic field.
... Previous studies focused on the effect of project-based learning (PBL) as a means to teach embedded systems design course compared to traditional one [30,31,32]. Additionally, they proposed an embedded system curriculum and teaching adapted module which could be part of any degree or master program in electrical and electronics engineering and computer science program. ...
This paper presents the validation process and results of a study to develop a measure for assessing students' attitude towards learning embedded systems design course. The instrument content validity was verified, and a pilot test was performed to assess the instrument reliability. The instrument construct validity was established using Rasch Analysis and WINSTEPS 3.92.1. Our results showed that all the instrument items fit the Rasch measurement model with acceptable fit index (0.6-1.4) and demonstrated excellent consistency, with a reliability alpha of 0.98 and 0.87 for items and persons respectively. The results showed that the survey instrument was reliable and valid. This study also revealed that most students developed some negative attitudes in the process of learning embedded system design.
The purpose of this research is to design and implement a new design of a low-cost, portable and prospective laboratory kit module. Laboratory kits are made easy to assemble, with relatively small dimensions. and suitable for use in laboratories with limited experimental space and funds. The research stages are carried out starting with needs analysis, hardware design, software design and overall testing. The test results of the DHT 11 temperature sensor can read the temperature and humidity index whose data is in the form of digital data and is displayed on the LCD. The PWM of the DC motor and the direction of rotation of the motor can be controlled using the DHT11 sensor. The keypad can control the direction of rotation of the servo motor so that students are expected to be able to provide authentication through a password with a keypad. Testing the module kit for data communication using the local network Testing the module kit for data communication using the local network is able to control the motor and relay even though there is still a delay in sending data this is due to the condition of the internet network at the time of testing. The overall test results work well. It is hoped that this module will encourage students to be able to create technological innovation applications based on embedded systems and IoT which will lead to the creation of technology among students.
Early on, students must develop competences by implementing simple or complex electronic circuits with Operational Amplifiers (OpAmps). Traditionally, these skills were mainly developed in laboratory classes, but technology allows us to explore other and complementary ways of aiding students in this achievement. This paper presents a contribution to improve the way OpAmps are included in electronic engineering courses’ curricula. A reconfigurable and expandable kit to teach electronic circuits based on the OpAmp uA741 was designed and implemented. This kit comprises a software application locally interfaced with a hardware platform capable of running in a PC. This platform includes a circuit with the OpAmp uA741 able to reconfigure according to a set of parameters defined by a software application. Its reconfiguration capability also enables the establishment of automatic connections for measuring and for applying signals to a reconfigured circuit, plus the ability to simulate the same or other OpAmp-based circuits. This paper provides an overview about the OpAmp uA741 and its relevance in engineering education. After presenting the kit and make some considerations for its improvement, at the end a brief discussion about its implementation in education according to specific educational strategies and methodologies are provided.
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