Design and Implementation of a Sequential Digital Display for a Nigerian University

A sequential digital display is an electronic system that is used to display information to the public. It is a device that contains light emitting diodes that conveys messages by a programmable controller or mechanical processes, regardless of size. Sequential digital display is fast gaining acceptance and application in different spheres of life. In this work, a sequential digital display system was designed and implemented. The components used include transformer, diodes, voltage regulator, resistors (fixed and variable types), capacitors, NE 555 timer, IC4017, IC7432, light emitting diodes and transistors. The aim of the project was to carry out a cost effective design, therefore, the components of the design were readily available and relatively cheap. The light emitting diodes displayed a message written as: Welcome to NOUN Ado-Ekiti study center. The project was tested and commissioned and found to meet specified design requirements. Keywords —Integrated Circuit, Light Emitting Diodes, Sequential Digital Display, Transistor