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Design and development of spinning LED message display system

Liong, Boon Yoong and Zakaria , Mohamad Fauzi and Hashim, Hairulazwan (2012) Design and development of spinning LED message display system. In: Proceeding of National Conference of Electric and Electronic Engineering 2012, 2012.


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The popularity of Spinning Message System, can be found in many existing projects which apply the creative concept of Persistence of Vision (POV) by using LEDs in the phenomenon of creating an after-image which is thought to persist for a period of time by humans' eyes. However, most of the existing projects share the similarity of displaying spinning (LED) message with fixed patterns. The objective of this paper is to design a spinning LED message system with adjustable displayed patterns in a more user-friendly way. The scope of this paper is to create a spinning LED message system which able to display patterns of totals 24x7 pixels of characters. The limitation of characters displayed includes the ASCII alphabets from 'A' to 'Z' and numbers from '0' to '9'. The proposed system is designed by interfacing the ASCII characters input by the user with the patterns stored inside the Microchip PIC18F4550 with desired timing delays of 0.76ms for every pixel. The results obtained are verified that the proposed spinning LED message system is capable to produce a desired POV patterns by the user.

Item Type: Conference or Workshop Item (Paper)
Uncontrolled Keywords: persistent of vision (POV); spinning LED message; microcontroller PIC18F4550
Subjects: T Technology > TJ Mechanical engineering and machinery > TJ751-805 Miscellaneous motors and engines
Divisions: Faculty of Electrical and Electronic Engineering > Department of Robotic and Mechatronic Engineering
Depositing User: Normajihan Abd. Rahman
Date Deposited: 11 Feb 2015 07:47
Last Modified: 11 Feb 2015 07:47
URI: http://eprints.uthm.edu.my/id/eprint/6130
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