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A comment on London tube map made from a working circuit board. Parent comment

Re:London tube map made from a working circuit board by StavrosK on Wednesday June 24, 2020 @07:37AM (#23626718)
At that point you're better off just getting a screen and drawing whatever you want on it, and kind of losing the point of the project, frankly.
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Re:London tube map made from a working circuit board by pbhjpbhj on Wednesday June 24, 2020 @10:12AM (#23628068)
Yes, I guess we're information junkies! The feature-creep is real.

I seem to recall the actual control centres used to use a big map with the train lines drawn using a line of bulbs, and indicating trains buy a series of bulbs. Similar to this, http://photos.signalling.org/_datas/o/n/d/ondcx12zxd/i/uploa... .

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