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Tram Departure Time Indicator

See how much time you have to run to the station, at a glance

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Public Transport website --> ESP8266 parser --> Arduino --> 8x8 LED Matrix

Code is up on GitHub (see sidebar).
A full writeup is pending!

Final design: Laser-cut MDF and printed label:

During the prototyping phase:

Older design concepts:

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Discussions

Stuart Longland wrote 11/05/2016 at 09:39 point

You've done an excellent job on the design.  Looks great.

So what's the significance of red vs green?  Is it time left vs how long it takes to walk there or is there some other colour coding?

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Daniel Rojas wrote 11/05/2016 at 09:49 point

Ha! Excellent question! And thanks for your nice comment.

The colors are actually static. Red stands for tram, green stands for S-Bahn (a sort of urban rapid railway).

I'm based in Berlin, and (as you can see in one of the old designs), the colors mimic the logos for each mode of transport. If I lived near a subway/U-bahn too, I would have added a blue one, and a bus would have been purple.

EDIT: And if you really wanted to nit-pick, M10 should have been orange as it's a MetroTram, running in shorter intervals and 24/7. But I like the symmetry :-) Now, to get that last display on the lower right working again...

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Stuart Longland wrote 11/05/2016 at 10:22 point

Ahh, so static colours… The symmetry probably works better than having one amber/orange.  I thought they might've been dual red/green dot-matrix displays and did some colour coding so you didn't have to look at the number.

Anyway, happy hacking. :-)

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davedarko wrote 11/04/2016 at 15:08 point

sweet update!

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Daniel Rojas wrote 11/04/2016 at 15:11 point

:) dankeschön! still need to fix some bugs, and ged rid of the rather pointless PHP parser, just do everything on the ESP.

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davedarko wrote 11/04/2016 at 17:28 point

I'd be interested in the code, could use this for my #world clock thing ;) make it useful. I wouldn't even have to change the stations much :D

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Daniel Rojas wrote 11/05/2016 at 10:05 point

I can't reply to your reply?

https://github.com/formatc1702/TrainTimes

Everything's there, though it's still ugly :-) I would do it differently if I had to start again, but that's always the case with projects, isn't it? I want to write a section on "lessons learned", there's quite some topics for that one!

Edit: I guess you mean the ESP BVG parser... yeah you have to wait for that one :)

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