TallPaul
New Member
Does anyone know of any simple designs for a rotating, scrolling LED display?
I'm looking to control up to four displays with the same message, remotely from a controller so that I can change the message without stopping and reprogramming the unit.
There are several challenges that will need to be overcome.
Firstly, the control system to enable the message to be changed, preferably with a display of its own so that I can see what is being programmed, (I may not be able to see the output on the rotating displays).
Then there is the comms link between the controller and the four rotating displays, I'm thinking a wireless link for two reasons, a) there will be no direct line between the displays, b) they will be rotating! There will be no direct line of sight either, so radio might be the only option.
Also the rotating display will need to know how fast it is spinning to be able to hold the message 'still'. Since the displays will be vertical, some kind of accelerometer could be used to determine when the sensor reaches the top and bottom of each cycle. (Because of this the comms link may have to be bi-directional!)
The whole control of the display could be from a serial port on a computer, but I would eventually like some remote control type device, maybe using bluetooth or similar technology.
Does anyone have experience in any of these fields that would be able to help me design such a thing?
I am thinking of making just one display initially, this will have some inbuilt memory to scroll a message on the display. This will then be altered from the controller and uploaded to the display when it is needed to be changed.
Any help or ideas on this will be most welcome.
Thanks in advance.
Paul
I'm looking to control up to four displays with the same message, remotely from a controller so that I can change the message without stopping and reprogramming the unit.
There are several challenges that will need to be overcome.
Firstly, the control system to enable the message to be changed, preferably with a display of its own so that I can see what is being programmed, (I may not be able to see the output on the rotating displays).
Then there is the comms link between the controller and the four rotating displays, I'm thinking a wireless link for two reasons, a) there will be no direct line between the displays, b) they will be rotating! There will be no direct line of sight either, so radio might be the only option.
Also the rotating display will need to know how fast it is spinning to be able to hold the message 'still'. Since the displays will be vertical, some kind of accelerometer could be used to determine when the sensor reaches the top and bottom of each cycle. (Because of this the comms link may have to be bi-directional!)
The whole control of the display could be from a serial port on a computer, but I would eventually like some remote control type device, maybe using bluetooth or similar technology.
Does anyone have experience in any of these fields that would be able to help me design such a thing?
I am thinking of making just one display initially, this will have some inbuilt memory to scroll a message on the display. This will then be altered from the controller and uploaded to the display when it is needed to be changed.
Any help or ideas on this will be most welcome.
Thanks in advance.
Paul