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Need advice on how to drive a VERY large flipdot
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Please be positive and constructive with your questions and comments.

Re: Need advice on how to drive a VERY large flipdot

by superyaniv on Tue Oct 15, 2013 2:08 am

Just got my hands on a very similar flip dot sign. (Luminator GTI Max) 7x90. I'm excited to try to get it up and running!

gutocarioca wrote:Hi, just added a few more files (circuit board and connector break down). Please have a look at the readme file on github.


The sketch code is still up - which is very helpful! The link to the board design is broken - can you repost the board design?

Also, it would be great to see the project in action if you have a video...

If I make progress on communicating through the RS-485 I'll try to post my own results.
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Re: Need advice on how to drive a VERY large flipdot

by gutocarioca on Mon Jan 06, 2014 6:39 pm

Hi, sorry it took me that long to get back to this - for some reason I didn't receive an update on the forum. Anyway, please check that link again and see if you can see the breakout of the pins.

Let me know how it goes.
Attachments
pinout_display.JPG
pinout_display.JPG (71.14 KiB) Viewed 279 times
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Re: Need advice on how to drive a VERY large flipdot

by gutocarioca on Mon Jan 06, 2014 6:44 pm

Here's another image. The original files are on the link I sent previously.
Attachments
flipdot_controler.JPG
flipdot_controler.JPG (56.27 KiB) Viewed 279 times
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Re: Need advice on how to drive a VERY large flipdot

by gutocarioca on Mon Jan 06, 2014 8:32 pm

And, on a related note, I got myself another flip dot display. This time it's a 4 panel (4 segments of 16x28 dots) sign, along with a control board (with preprogrammed memory) and a power supply board. I've been struggling big time deciding how to control it. It's not as easy as the previous one, as the control board doesn't have a socket with pins I can easily map out and control with the arduino. It has a 7 pin socket which I assume received serial data to reprogram the memory. Or maybe the memory needs to be programmed somewhere else. At any rate, perhaps I will need to build my own controller? If that's the case, it seems that the IC of choice would be a FP2800A, but still can't find where to buy them. Alternatively (and that's scary), I could finish reverse engineering the control board, lift a few pins of some of the components and use the bridge matrix at the bottom of the board and save me a lot of headaches (or else, blow a perfectly fine board).

Not sure what the best course of action here is... Any ideas?

Control board:

https://www.dropbox.com/s/o2whwefaoypti ... .09.58.jpg
https://www.dropbox.com/s/kxpemd0wdab0v ... .09.46.jpg
https://www.dropbox.com/s/nvx9v4x8qln69 ... .37.06.jpg
https://www.dropbox.com/s/cga1vun1y24rm ... .45.56.jpg
https://www.dropbox.com/s/pdnya7nzpek2z ... .17.28.jpg
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Please be positive and constructive with your questions and comments.