Development and Implementation of Microcontroller-based Improved Digital Timer and Alarm System
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Date
2016-05-06
Journal Title
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Publisher
Federal University of Technology Minna
Abstract
Time plays an important role in our daily activities, more particularly in sectional events or conference arena where there is need for accurate time management. This paper focuses on the development and implementation of an improved digital timer with audio-visual unit using (PIC16F887) microcontroller chip and other electronics component such as LCD, 7-segment display, LED and buzzer as an I/O device. Thus, the need for this device in our daily activities is to monitor the time scheduled for events, updating and alert the audience using an audio-visual approach. The proposed system allows apt time management and avoids time wastage during seminar presentations and the likes. It particularly helps presenters to be time conscious, thus, making them to naturally adjust such that the allotted time is enough to cover up their presentation. The digital timer and alarm system presented herewith is also of advantage to the physically challenged like the deaf and blind in monitoring their sectional activities and to be fully involved about the event situation. The system was designed in different modules, and all were interfaced together with firmware chip to simplify the mechanism’s fault diagnoses and fault corrections.
Description
This paper presents the design and implementation of an improved digital timer system with audio-visual alert features, aimed at enhancing time management in events such as conferences and seminars. The system is built around a PIC16F887 microcontroller and integrates various components including an LCD, 7-segment display, LED, and buzzer to provide real-time visual and audio notifications. It enables presenters and event organizers to effectively monitor and manage allotted time slots, helping to reduce time wastage and improve scheduling efficiency. Notably, the system also caters to individuals with disabilities—such as the deaf and blind—by offering inclusive time alerts. Designed in modular form, the timer system ensures ease of troubleshooting and maintenance, making it a practical and accessible solution for structured timekeeping in organized gatherings.
Keywords
Digital Timer, Signal Module, Conference Arena, Physically Challenge, Firm Ware Chip
Citation
Ajao, L. A., Adegboye, M. A., Dogo, E. M., Aliyu, S. O., & Maliki, D. (2016). Development and Implementation of Microcontroller-based Improved Digital Timer and Alarm System. Proceedings of the International Conference of Information and Communication Technology and Its Applications (ICTA 2016). Pp 184-190.