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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
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4.2 MB

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Comments

prakad
16 Jan 2015: 16:18 PM
I need code for changing this msg for 89c2051......plz can any one mail me that..........on [email protected]
  
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Conversation

ExperimenterUK
Mon May 25 2015, 06:21 PM
@Subrat Sahu not a simple answer.Create a thread in "General help Guidance and Discussion" forum
Sun May 24 2015, 06:51 AM
Subrat Sahu
I have a confusion about 10 bit adc formula as describe bellow that resolution = Vref/1023 or Vref / 1024
ExperimenterUK
Sat May 23 2015, 08:54 PM
@utpal.. Create a thread in the Pic forum
Thu May 21 2015, 01:04 AM
utpal
i am a hobbist. i work on 8051. just i have started with pic 16f877. but a bitter experiance is going on. as i am programming any code to my pic877 and putting it in my board and it is working, but the 2nd time it is not taking any program,I have experimented just 7 new one pic mcus. result is the same. please tell me the reason. my programmer is TOP3000(universal programmer).
ajay_bhargav
Wed May 20 2015, 04:48 AM
@lak you can use the same code provided you are not using any s52 specific ports and registers.
Mon May 18 2015, 05:58 AM
lak
i used to develop a code for at89s52 shall i use the same code for at89c4051
Sun May 17 2015, 07:57 AM
Ayoosh
what if i have to rotate motor continuously at a step angle of 1.8 degree
ExperimenterUK
Fri May 15 2015, 06:02 PM
@oracle1946.. Post your question in the PIC forum
Fri May 15 2015, 03:48 AM
nadeem232
if some has solution kindly share solution Principles of Electric Circuits,by Thomas L. Floyd
oracle1946
Thu May 14 2015, 03:39 PM
I want to build a PIC16F684 sun logger using either a solar cell (0.5v solar cell or photoresistor). Any help out there?

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Comments

vipinpathakg
Wed May 27 2015, 05:57 AM
MuhammadTanvir
Sun May 24 2015, 11:02 AM
as_rog
Sun May 17 2015, 08:00 AM
oracle1946
Thu May 14 2015, 03:34 PM
kakaru32
Tue May 12 2015, 04:29 PM
Yateesh
Sat May 09 2015, 02:46 AM
scmg
Fri May 08 2015, 06:40 PM
OMERO
Fri May 08 2015, 11:53 AM

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Thu May 28 2015, 11:15 AM
Hello there,I am using a MCU LPC2468/78 and in its...
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Thu May 28 2015, 04:53 AM
[Topic moved to Electronics forum]
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Wed May 27 2015, 06:28 AM
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Posted By ExperimenterUK
Mon May 25 2015, 06:16 PM
We need to do some simple tests.Get the speaker to...
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Posted By mayank058
Mon May 25 2015, 04:57 AM
Dear sir, I am taking output from PI...
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Posted By MuhammadTanvir
Sun May 24 2015, 11:11 AM
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Posted By ExperimenterUK
Sat May 23 2015, 09:52 PM
Does the speaker work?.'Exactly' where on the boa...