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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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205987

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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

Tue Mar 03 2015, 06:59 AM
candyyyy
Hi! Can i ask how do you connect the Vo contrast pin? Do i leave it open?
ExperimenterUK
Sun Mar 01 2015, 07:06 AM
@Anupam Biswas..post all you have done in the GSM forum
Sat Feb 28 2015, 02:51 PM
Anupam Biswas
I am doinga project on gsm based home automation.I have done alittle study about at commands.I am using Atmel 89c51 with yhe gsm module.I am unable to receive any message via the module.The simulation is done on proteus and i am using a virtual terminal.Can anyone please help me?Thanks in advance.
Tue Feb 24 2015, 12:47 AM
MrCurious
is Stat a global variable too? you reference it in Chan's "disk_status" function.
Sat Feb 21 2015, 09:10 PM
Harikumar
കൊള്ളാം
ExperimenterUK
Fri Feb 20 2015, 06:28 AM
@sugikz.. I have asked Ajay about it, he'll soon sort it out
Thu Feb 19 2015, 12:22 PM
sugikz
"Sorry no bots allowed! You entered two different email addresses. Please enter a valid email address in the two fields provided"
Thu Feb 19 2015, 12:21 PM
sugikz
this are the problem notice box;
Thu Feb 19 2015, 12:20 PM
sugikz
yes, i still got stuck on email problem, i've used gmail, yahoo, and told some friends of mine to sign up on the site, but they face the same problem as iam,
Thu Feb 19 2015, 05:48 AM
sjeeva
hi, is any doing a project on raspberry pi

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Comments

MALIKATIF
Mon Mar 02 2015, 04:47 PM
raamchandran
Mon Mar 02 2015, 11:20 AM
ABiDAEV
Sat Feb 28 2015, 11:31 PM
arunkollam
Wed Feb 25 2015, 05:28 AM
sugikz11
Wed Feb 25 2015, 04:23 AM
Buhari
Sun Feb 22 2015, 03:16 PM
Jarvis_v3
Sat Feb 21 2015, 02:00 AM
Sontoloyo
Thu Feb 19 2015, 12:50 PM

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Forum Activity
ExperimenterUK Avatar
Posted By ExperimenterUK
Wed Mar 04 2015, 01:38 AM
I follow the LT3652 data sheet (page 26) to connec...
steve_yu_chan Avatar
Posted By steve_yu_chan
Tue Mar 03 2015, 04:32 PM
Dear All ,can you help me to solve the regarding t...
ABiDAEV Avatar
Posted By ABiDAEV
Sun Mar 01 2015, 11:42 AM
Thanks for sharing, but can you please update the ...
sankalp_s Avatar
Posted By sankalp_s
Thu Feb 26 2015, 09:27 PM
What are you trying to make ?ExperimenterUKsir i w...
ExperimenterUK Avatar
Posted By ExperimenterUK
Thu Feb 26 2015, 12:58 AM
We seem to be moving away from the original projec...
ajay_bhargav Avatar
Posted By ajay_bhargav
Wed Feb 25 2015, 02:02 PM
You will need a 64 bytes buffer that will be writt...
PsySc0rpi0n Avatar
Posted By PsySc0rpi0n
Wed Feb 25 2015, 09:24 AM
I've already read that tutorial and almost all oth...
ajay_bhargav Avatar
Posted By ajay_bhargav
Wed Feb 25 2015, 04:56 AM
brightness control is going to be tough job as you...
ajay_bhargav Avatar
Posted By ajay_bhargav
Wed Feb 25 2015, 04:36 AM
I've already read that tutorial and almost all oth...
sankalp_s Avatar
Posted By sankalp_s
Tue Feb 24 2015, 07:18 PM
The attached code is for up to 16 LEDs.Just point ...