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Vane display clock ideas.
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Vane display clock ideas.

by blackkittn on Tue Aug 23, 2011 10:13 pm

flipd.jpg
Small 7-segment Vane display.
https://secure.wikimedia.org/wikipedia/en/wiki/Vane_display
flipd.jpg (99.19 KiB) Viewed 1604 times


I have a set of flip digit modules and I am tinkering with what would be the best way to use them in a HH:MM:SS clock setup. I am tinkering with a few ideas on how to move them. You see it has three pins for each solenoid, up, ground in the middle, down, and it's that 84 sets of pins I need to move. I have seen people move the dot displays with shift resisters/H-bridges. I was Thinking of using a mega and a pair of Centipede Shields to get the needed I/O and voltage .

Any Ideas are welcome. :D
Last edited by blackkittn on Wed Aug 24, 2011 11:30 pm, edited 1 time in total.

blackkittn
 
Posts: 38
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Location: Nashville, TN

Re: Vane display clock ideas.

by blackkittn on Wed Aug 24, 2011 9:11 am

Ohh also forgot to mention the important Protection diodes :D

blackkittn
 
Posts: 38
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Location: Nashville, TN

Re: Vane display clock ideas.

by easternstargeek on Wed Aug 24, 2011 10:05 pm

(Post removed)
Last edited by easternstargeek on Fri Aug 26, 2011 11:17 pm, edited 1 time in total.

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Re: Vane display clock ideas.

by easternstargeek on Wed Aug 24, 2011 10:10 pm

Oh, by the way... you don't need a Mega. The smallest, wimpiest AVR chip will do the job. This is s-l-o-w i/o stuff! Would work great with one of the Dallas time chips.

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Re: Vane display clock ideas.

by blackkittn on Wed Aug 24, 2011 11:29 pm

Ye Gads, I was doing it the overkill way. :D I was thinking about shift registers but I could not for the life of me remember the type of transistors to use. :oops: This helps out a lot. I did want to mention that I got the displays from the Huntsville, AL Hamfest. The man selling them picked them up as new old OEM stock from a company who did display manufacturing, I think.

blackkittn
 
Posts: 38
Joined: Tue Dec 23, 2008 10:49 pm
Location: Nashville, TN

Complete Solution moved to my Blog

by easternstargeek on Thu Aug 25, 2011 9:43 am

After an embarrassingly large number of false starts to this problem, I finally summarized everything on my blog, with lots of sketches and explanations- hopefully correcting a myriad of mistakes.
Why did I put so much time into this? Well, not being lucky enough to actually have displays like these, posting a solution is the next best thing to being there!
Read about it here: http://easternstargeek.blogspot.com/
Last edited by easternstargeek on Mon Aug 29, 2011 1:01 am, edited 2 times in total.

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Posts: 344
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Please be positive and constructive with your questions and comments.