• saurabh nikumbe
• vishal more
• priyanka diwate
• Parvez Mulla

Optical illusion led display using arduino 1Saurabh nikumbe,2Vishal more,3Parvez mulla,4Priyanka diwate,5Prof.a.a.shaikh 1B.E.Student,2B.E.Student,3Project Guide Department of Electronics And Telecommunication Engineering Shivajirao S.Jondhale College of Engineering Dombivli East, Thane, Maharashtra 421204, India. ________________________________________________________________________________________________________ Abstract : Propeller display is a special kind of circular LED display. It is making use of POV (Persistence of Vision); which means that if something appears in the same spot consistently, at least 50-60 times per second, our brains think that it’s permanently there when it is not. This propeller display is mechanically scanned and displays in digital format. Made from scrap it can be used anywhere and everywhere and the interesting fact is that its crystal clear display. Maintenance and repairing of the display is so easy, that anyone having a little electronics knowledge can take care of this. All the synchronizing can be implemented through software .The software part of display works using interrupts and timers. This paper explains the project which is a special kind of circular LED display. With the help some mechanical assembly, LED count, hardware requirement, and hence overall cost is cut to very affordable price. Also, maintenance and repairing of the display is so easy, that anyone having a little electronics knowledge can take care of this. All the synchronizing can be implemented through software. First of its kind, made using the 40-pin 8051 series microcontroller, this project use the principle of Space Multiplexing. This propeller display is mechanically scanned and displays the characters in digital format. Made from scrap it can be used anywhere and everywhere and the most amazing fact about this display is its crystal clear display. This display consists of just 7 bright LEDs which are rotated to show the display. For building this project, requirement is just a small 40 pin microcontroller, a position encoder, and LEDs. This display can show the messages, which will require a whopping 525 LEDs. So hardware and cost minimization is achieved. Keyword-persistence of vision display, Microcontroller, DC motor, Voltage converter, LED Display,9V Battery

persistence of vision display, Microcontroller, DC motor, Voltage converter, LED Display,9V Battery

"Optical illusion led display using arduino", International Journal of Emerging Technologies and Innovative Research (www.jetir.org), ISSN:2349-5162, Vol.6, Issue 6, page no.735-742, June 2019, Available :http://www.jetir.org/papers/JETIR1907249.pdf

"Optical illusion led display using arduino", International Journal of Emerging Technologies and Innovative Research (www.jetir.org | UGC and issn Approved), ISSN:2349-5162, Vol.6, Issue 6, page no. pp735-742, June 2019, Available at : http://www.jetir.org/papers/JETIR1907249.pdf