ABSTRACT
This project shows the construction of a microcontroller based security door using smart card. It is aimed towards programming the microcontroller to control the hardware in sliding door. The system consists of a microcontroller 89S52 which sends a signal to the multiplexers on insertion of the smart card in the card slot. The multiplexers consist of ICS which prompts for a display of the identity of the card user in the liquid crystal display (LCD). The LCD displays the status of the card. On validation of the card, the LCD displays a welcome note to the user and prompts for a pin code. The pin code is being keyed in from the key pad. If confirmed by the program written into the microcontroller access will be granted, otherwise no access, giving the user two more chances to insert the correct smartcard or pin code to it, before final denial of access and alarm. When access is granted, the card sends a 5volt signal to the microcontroller which triggers relay, resulting in the opening of the door
ABSTRACT
In this study, our focus was on the impact of motivation on employee performance in an organization using...
ABSTRACT: This study explores the influence of early childhood education (ECE)...
ABSTRACT
The control of materials on construction sites is handled carelessly by planning and purchasing departments, si...
Abstract: THE CHALLENGES ASSOCIATED WITH COST MANAGEMENT IN THE DIGITAL ECONOMY
This study explores the challenges associated with cost m...
Abstract: AN APPRAISAL OF COST ACCOUNTING FOR ENERGY AND UTILITIES INDUSTRIES
This research appraises the role of cost accounting in the...
ABSTRACT
In spite of the fact that most teachers of science have been trained in the u...
Abstract
This study is on business organization and managerial efficiency of small scale enterprise. The total populatio...
Background to the Study
Ozo title-taking is an interesting cultural practice in Igbo-land. This title-taking was the br...
Abstract
The main objective of this project was to determine the extent to which sales promotion is und...
Abstract
Crisis is part of human society which exist through the interaction of man another with another that must be managed otherwise t...