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Description

Project tested and working perfectly

Propeller Display using AT89C2051

This project 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 20-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 it’s crystal clear display. This display consists of just 8 bright LEDs which are rotated to show the display.

For building this project, requirement is just a small 20 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.

-From Abstract


This project has submitted by Chincholkar Apoorv Ravindra, Joshi Sanket Satish and Gore Rigved Bhalchandra, students of Vidyaprathishthan’s College of Engineering, Baramati. I thank them for contributing to community and sharing knowledge though this wonderful project.

The download file consist of:

  1. Code bundle: Assembly code written for RIDE, with complete project and hex file.
  2. Images: Working images of project.
  3. Project Report: Project description and report in docx format (MS Word 2007 or more needed).
  4. Project Presentation: Power point presentation in pptx format (MS PowerPint 2007 or more needed).


If you have any questions or need details please make use of forum (Rickey's World Forum).

Tags propeller display using at89c2051persistent of vision8051 propeller displayspace multiplexing
  Filesize

4.2 MB

  Downloads

200913

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Conversation

ExperimenterUK
Thu Oct 30 2014, 06:02 PM
This is a chat box..create a thread if you need help...but we don't do homework
Tue Oct 28 2014, 07:33 PM
vinni
hi rickey...anyone got the pgm...pls gimme now
Tue Oct 28 2014, 06:35 PM
potla
hi vinni even i need that program. help me if you get it
Tue Oct 28 2014, 03:22 PM
vinni
1. Using a look-up table in Flash ROM and accumulator offset indexed addressing mode, write a program that acts as a timer. The timer should count from 0 to 59 seconds. After reaching 59, it should go back to 0 on the next second and continue to count up. The timer should use the seven-segment display. The look-up table should contain information on how to display the digits 0 – 9 on the seven-segment display
Tue Oct 28 2014, 03:22 PM
vinni
hello Rickey..i need this pgm very urgently
Tue Oct 28 2014, 01:42 AM
Boy Donald
Dear sir, thanks before. i have some project urgent for my school and my project need this digital countdown timer using 7 segmen display. but your project only show ten minutes countdown, i need your help, can you show me more to change the minute or set the time manually. thank you, sorry for disturbing you.
Tue Oct 28 2014, 01:32 AM
Boy Donald
dear sir
Tue Oct 28 2014, 01:19 AM
Boy Donald
Rickey you inspired me a lot but why i can not change the time ( minute
Sun Oct 26 2014, 02:51 AM
sandeep bankar
dear sir I m facing problem about..how to read number of incoming call in gsm 900 a. pls help how to read it in atmel avr microcontroller.
ajay_bhargav
Mon Oct 20 2014, 11:22 AM
@skrishna, please post in forum so we can help you better.

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Comments

prash5054
Thu Oct 30 2014, 06:34 AM
Max.otto
Mon Oct 27 2014, 01:23 PM
toypoy
Sun Oct 26 2014, 01:06 AM
hiswe
Thu Oct 23 2014, 04:18 PM
pddung93
Sun Oct 19 2014, 01:56 PM
msideal
Thu Oct 16 2014, 08:48 AM
robotgirl
Tue Oct 14 2014, 06:23 PM
BRV64
Mon Oct 13 2014, 05:48 AM

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Forum Activity
rkodaganur Avatar
Posted By rkodaganur
Fri Oct 31 2014, 01:44 AM
Hi Ajay, I wanted to know can we use transformer ...
Max.otto Avatar
Posted By Max.otto
Thu Oct 30 2014, 11:09 AM
Hello all, before generating i have to give PWM p...
prash5054 Avatar
Posted By prash5054
Thu Oct 30 2014, 06:40 AM
can u post the updated code for the above problem ...
ExperimenterUK Avatar
Posted By ExperimenterUK
Wed Oct 29 2014, 05:36 PM
Thank you for the feedback.It's good to hear when ...
msideal Avatar
Posted By msideal
Tue Oct 28 2014, 05:34 PM
ExperimenterUK: Thankyou so much for helping me......
msideal Avatar
Posted By msideal
Tue Oct 28 2014, 05:18 PM
thanks ExperimenterUK for your help.... I will try...
ExperimenterUK Avatar
Posted By ExperimenterUK
Mon Oct 27 2014, 10:29 PM
Your error seems to be the use of PINC, which is f...
msideal Avatar
Posted By msideal
Mon Oct 27 2014, 05:45 PM
i want to extend my i/o's by writing this code. i ...
Max.otto Avatar
Posted By Max.otto
Mon Oct 27 2014, 01:30 PM
Hi all , i am working with PSoC 5LP. I have contin...
gaurav7577 Avatar
Posted By gaurav7577
Mon Oct 27 2014, 09:53 AM
hello everyone i wanna interface blood pressure se...