How does the rotating LED message display work?
What is the logic and concept behind it.
What is the logic and concept behind it.
ROTATING LED MESSAGE DISPLAY
- Thread starter Abhinavrajan
- Start date
AlbertHall
- Joined Jun 4, 2014
- 12,347
1. consider the message as written in a circle with the end joined to the beginning
2. Display the message
3. wait a short time
4. redisplay the message moved 1 character or pixel (depending on whether it is a character or graphic display)
repeat 3 and 4
2. Display the message
3. wait a short time
4. redisplay the message moved 1 character or pixel (depending on whether it is a character or graphic display)
repeat 3 and 4
There are many ways to do it. It depends on the programmer.
I've been experimenting with a $9 computer called C.H.I.P. One of my first experiments was to display Hello World on a 5x7 LED matrix. When I finished that, I regretted not wiring a larger display so I could implement a scrolling message. In spite of only having a matrix large enough to display a single character, I decided to implement a scrolling display.
The way I did it was to construct an array with the message and then treat the LED matrix as a "window" that I "slid" over the message array.
I've been experimenting with a $9 computer called C.H.I.P. One of my first experiments was to display Hello World on a 5x7 LED matrix. When I finished that, I regretted not wiring a larger display so I could implement a scrolling message. In spite of only having a matrix large enough to display a single character, I decided to implement a scrolling display.
The way I did it was to construct an array with the message and then treat the LED matrix as a "window" that I "slid" over the message array.
