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Design of a Wirelessly-Updated Digital Clock with Android Interface
| International Journal of Computer Applications |
| Foundation of Computer Science (FCS), NY, USA |
| Volume 175 - Number 15 |
| Year of Publication: 2020 |
| Authors: E. O. Idiaghe, R. I. Osaze, E. Osazee |
10.5120/ijca2020920641
|
E. O. Idiaghe, R. I. Osaze, E. Osazee . Design of a Wirelessly-Updated Digital Clock with Android Interface. International Journal of Computer Applications. 175, 15 ( Aug 2020), 6-10. DOI=10.5120/ijca2020920641
Abstract
This paper presents the design of a digital clock, while providing an easy and convenient means of updating the time, and/or any other message that may be displayed. The aim was to design and also introduce a user-friendly update mechanism through creating input methods – using a 4x4-numeric keypad for data input, establishing communication protocol with Bluetooth and output method using a liquid crystal display. The design incorporated both hardware and software in achieving this aim, with the hardware consisting of LCD, LEDs, RTC, HC-05 Bluetooth module, and a 4x4-numeric keypad. The software is handled by a ubiquitous microcontroller – ATmega16A, programmed in C++, as well as a generic HC-05 Android Bluetooth Application for data input (in addition to the hardware means of update – keypad). Hence, this design introduced convenience (user-friendliness) as compared to clocks which are manually updated. The overall design had percentage accuracy and error of 99.17 and 0.8 respectively.
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