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Moving message display with keyboard interface

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sn_burki

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atmel scrolling message display

Hi all, I have been trying to make a moving message(text) display just for experimental pupose, and many times I asked for help on forum but suggested site has no easy softwares to be understood. I want a easy software for it which is written in assembly Language, if any one can help me in this matter including ful daigram assembly code and circuit diagram.
regards
 

Mike K8LH

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Re: Moving message display

Are you using a microprocessor, and if so, which one?

Mike
 

NoHa111

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Re: Moving message display

plz tell us what do u working with?microprocessor or microcontroller?and which type so we can help
 
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Shani

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Re: Moving message display

Assalamo Allykum !

You can do this easily by programming languages.

I have developed the same thing on the LCD using the Visual Basic 6.0 .

By using Software you can add more features. I think it is easy in the VB 6.0 and it is easy to interface.

Take Care

Allah Hafiz
 

asmjager

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Re: Moving message display

Hello all,

Most of all Text LCD controllers are Hitachi 44780 or based in its instrution code. For move a Text in this kind of display, just use the instrution 0 0 0 0 0 1 SC RL * * (from MSB to LSB and where SC - Display Shift On(1)/Off(0) | RL - Direction of Shift Right(1)/Left(0)) and write your text. After that, considering a single message, just put it in a loop and and shift it. Usually the controller adresses 40 char positions, independent of how many real chars your display show.

Please take a look at attached document for more details.

Regards,

Renato

This is a pdf version of this site https://www.myke.com/lcd.htm
I couldn´t acess it right now and so I put my (maybe old ??) version.
 

sn_burki

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Re: Moving message display

Hi all
I am using Atmel 89C2051 with I2C, I just want to experience the different modes of the scrolling text, on the basic bases I want to just make a moving message display and scrol text in most easiest way.
regards
 

irfansyah

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Re: Moving message display

what kind of display are you going to work with?

what i always use in programming displays is that i make some sort of video memory in the RAM where each memory locations in that video memory corresponds to a dot or pixel on the display. Thus, the task of displaying to the display and the task of animating texts can be separated. (i am talking about matrix led type displays)
 

sn_burki

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Re: Moving message display

hi
i m using 7x5 dotmatrix display, total 10-15 display will be used, i want the simple diagram with code written in assembly language etc. can u help?
regards
 

VSMVDD

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Re: Moving message display

you can use google to find thousands of examples of moving displays

try this string

moving + led + message + displays -- using the maths qualifiers will narrow the search scope and yield better examples

also adding keywords using ++ diy ++ schematics ++ project

so a string would look like


https://www.google.co.uk/search?hl=...+++++diy++++schematics++++project++++++&meta=



ps dont be so lame write your own code and make your own designs for such a simple shit lame project if you need help then you need help !
 

CMOS

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Re: Moving message display

Look here
 

romie

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Re: Moving message display

can anyone send me an assembler code for moving text on 8x8 dot matrix display
 

CMOS

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Re: Moving message display

Just go to the above mentioned link. You'll find everything you are looking for.
 

the_kid25

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This schematic and source code,please corect code if make Atmega8535,i compiler with code vision avr no error but warning=2 please corect this code and share here or send to the_kid25@yahoo.com,my prototipe is final project.who have same project???? please help me
 

Embedded_Geek

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Dude i have the code but its in C and for keyboard interfacing have a look at
 

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