I have use Arduino mega 2560 & dmd display(24 nos) .
In my project i have problem to scroll message more 255 character please suggest how to solve this problem.
if connected more dmd display scrolling speed is slow please suggest.
I have try other option ,i have use DMD2 library & Arduino uno in this scroll more than 255 charcter working but this is not working using Arduino mega2560 please suggest solution.
thanks in advance!
More details please.
Are you using 24 DMD displays?
What displays are they and how are they connected/driven.
Where is your code. Only allowing 255 character messages suggests your using the wrong data type (byte) for the message length.
From the DMD2 github page...
This library is currently in BETA release meaning the documentation is incomplete, and the implementation may contain bugs. If you want the stable version, please use the original DMD library for now not DMD2.
If the scrolling is slow then maybe using a faster MCU will help but the scroll speed limit may be due to the interface speed between the Arduino and the display.