Comments on: AVR ATmega8 Project – LED Moving Message Display

By: Ashok Shah

Ashok Shah — Sat, 25 May 2013 03:32:54 +0000

My 15×7 Smart LED Matrix Board was working perfectly fine but has now developed some problem. The message was moving from right to left and all charcters were perfectly readable, but now the characters are not readable and instead of the scrolling or moving message dots seem to be moving only vertically…please guide as to what can be the problem?
Regards,
Ashok Shah
Ahmedabad

By: Avinash

Avinash — Sun, 19 May 2013 12:13:22 +0000

@Ashok Shah

See the program care fully, make required changes and recompile project. Get the hex file and burn to the MCU.

By: Ashok Shah

Ashok Shah — Sun, 19 May 2013 11:43:58 +0000

The project s working very nicely but how can we change the message, please let me know by writing to my private mail and oblige. Regards

By: Ashok Shah

Ashok Shah — Sun, 19 May 2013 11:42:38 +0000

Very nice project Avinash Guptaji. I have bought it and it is working. Congrats. Regards

By: Febin

Febin — Mon, 13 May 2013 17:39:09 +0000

hi avinash
am planing buy complete kit of moving message before that i want to make sure few things
i want to implement rtc and LM35 what my concern is while reading adc there will be a delay will come.
and it may lead to flickering of display ???

By: rajesh

rajesh — Fri, 10 May 2013 20:07:56 +0000

thanks shailesh ,
can u tell me how to display a message on this dot matrix message send via GSM MODEM pls help i need

By: shailesh

shailesh — Fri, 10 May 2013 17:36:42 +0000

i am sorry it is common anode dotmetrix , common anode coulumn and common cathod row.

By: shailesh

shailesh — Fri, 10 May 2013 17:31:26 +0000

change 20mhz crystel and solve my problem.

By: shailesh

shailesh — Fri, 10 May 2013 17:30:13 +0000

it is common cathod dotmetrix ,common cathod column and common anode row.

By: rajesh

rajesh — Wed, 08 May 2013 19:01:57 +0000

hello avinash sir,
can u tell me which dot matrix u have used,either it is common anode row or common anode column.sir pls reply me fast because it argent its my final year project.

By: shailesh prajapati

shailesh prajapati — Thu, 02 May 2013 05:43:27 +0000

hello avinash sir ,
good project but my led message continues flier and scrolling. please help me for this problem

By: Avinash

Avinash — Wed, 01 May 2013 12:31:52 +0000

@Vinod,

You can purchase it from here

http://store.extremeelectronics.co.in/AVR-ATmega8-Based-Moving-Message-Display.html

By: vinod

vinod — Wed, 01 May 2013 11:28:51 +0000

sir,
I am interested in purchase of led moving message display
project, complet with,display module,controller ,development board .complete to run the project.
kindly advise the cost including postage/qurrier charges

I am in pune, India.
PLs send details from mail.

my email- vinodkore777@gmail.com

By: Sagar

Sagar — Fri, 29 Mar 2013 05:31:02 +0000

I get over all the error.

By: Sagar

Sagar — Wed, 27 Mar 2013 11:53:31 +0000

Ya it working Properly But only when i Build the hex file using AS5 but not in AS6. and i have to modify IO pin to work it properly.

By: Avinash

Avinash — Tue, 26 Mar 2013 12:05:18 +0000

@Sagar,

Is the controller board and display working properly ?

By: Sagar

Sagar — Tue, 26 Mar 2013 07:48:07 +0000

I had purchased the Controller Board and Message Display Board From You. when i tried to build this project in AS6 it gives some error regarding prog_uchar is not valid.

Error 1 unknown type name ‘prog_uchar’

Error 2 variable ‘smallFont’ must be const in order to be put into read-only section by means of ‘__attribute__((progmem))’

please guide me with it

By: Febin

Febin — Thu, 07 Mar 2013 09:41:38 +0000

Column Anode

By: Avinash

Avinash — Fri, 01 Mar 2013 07:19:06 +0000

What do you mean by CA?

By: Febin

Febin — Fri, 01 Mar 2013 06:51:25 +0000

@avinash it is display is CA, i think correct me if am wrong