A dot matrix led sign. Something about the size of maybe an exit sign. Will only display up to 3 digit numbers but has to be very readable from a 30ft distance.
raschemmel:
LED matrix display - MD_Parola, MD_MAX72xx and MD_MAXPanel - Exhibition / Gallery - Arduino ForumParola for Arduino - LED Matrix with MAX7219 controller - YouTube
I always appreciate anyone who takes time to help. The display in that project seems to be too small for my application.
This one is my choice:
http://www.dfrobot.com/wiki/index.php/8x8_LED_RGB_Matrix_(SKU:DFR0202)
http://www.maximintegrated.com/app-notes/index.mvp/id/1033
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Hey these are pretty good. Thank you very much!
If you can get the information on how to program the DFROBOT 4x2 array (2 high, 4-long), I think that would
work for you and might actually be less expensive. I wish I could help you with that part but I just don't have
enough programming experience.