Realtime BART Arrival Display
filbot.com139 points by Jadrago 7 hours ago
139 points by Jadrago 7 hours ago
Nice execution, I think you nailed the vibe. Nice find on that display, it’s awesome!
If you wanted to get rid of your middleware and maybe pick up some insight, one of the things that SOTA LLMs are really good at is translating code from one language into another.
The ESP has plenty of moxie to handle the API work, so you could try translating it for the ESP, then you could drop the weight of your middleware service. I use LLMs that way when I feel roadblocked (usually laziness more than anything lol) and I’m often surprised at how much I learn from the implementation.
Just an idea, it’s fine as it is.
Cool project and very nicely done!! claps.
You know what, I used to plan my leaving from home based on the timings at the station, but soon I realized that it is not worth it. It is not because trains are not sticking to the time table. Just randomly starting at your own comfort eliminates the anxiety that comes with planning. Your average wait time might increase to half of the interval between the trains, but that would be an increase of only a few minutes for mornings, in return for never bothering to check time again.
I built a small hardware device to show the departure time of the tram next to my house, because here in Finland it gets cold in winter.
Mostly the winter isn't super-cold, something like -10°C/14°F, but there are weeks where it will be -20°C/-4°F and then there's a big difference between waiting at the tram stop for 1 minute or 7 minutes.
Here, if it's -10 degrees, then the tram probably won't be working anyway; Ireland tends to take that sort of extreme temperature as a license to shut down _absolutely everything_.
(It hasn't been -20 degrees here since records began.)
As someone who lives in England seeing -10C described as “not super cold” is interesting, I guess perception of these things varies a lot depending on where you live and how prepared you are
Quick note your average wait time might increase to more than half the interval, thanks to the Waiting Time Paradox, a transportation manifestation of the Inspection Paradox.
https://medium.com/data-science/the-inspection-paradox-is-ev...
I look when getting a bus/train if the frequency is less than ~one every ten minutes. I never look for trams (those are ~always headway <10 mins for the routes I use).
Different people have different thresholds. some go as high as 12. it is generally excepted that until you get to 7 most people are checking the schedule before leaving the door. there is noticable bumbs in ridership down to 5 minutes (not always enough to pay for the costs of that much service) so that should be the goal if a system can do it.
Those are the projects I love and get inspired by. I love the execution and the level of detail, making it feel like a true miniature signage on the station.
Well done and what a lovely spirit.
Amazing. I want one. Keep up the great work!
Thank you for the inspiration from your nice and simple real-time API. I made a pass a few years ago on digesting similar GTFS data and you've made me realise how much simpler it could be! :-)
Cool! Hey I have a feature request: Could you add the robotic voices?
When Noisebridge was new, I wrote a program to get the BART arrival times and play them (in a synthesized voice as close as I could find to the BART one, though clearly not the same one) through the loudspeakers at the space during the last half hour or so of BART service every night. Unfortunately, other people found this annoying, so it was disabled very quickly.
In my case my nostalgia is tied to the bubbly incoherent voice that says (in astonishingly clear manner) what train arrives first and then proceeds to say which platform and which track, which is so indistinguishable that you never know where to run to (before we had BARTs in the underground passage we used to check all the platforms, because there might have been a change)
I love how long the terrible speech synthesis on BART lasted. I don't mean this in a negative way at all. BART was so state of the art when it was built, that it still feels like the future today. They did a good job on ... everything.
Fun link. I saw this article and immediately thought "I need to go find the voice" and this is exactly what I was looking for.
This is such a cool thing you've built! Must add a super cool vibe to the room too!
How are you hiding the cable in the last photo or is it battery powered?
They're running a USB-C cable through the wall behind, down thought the wall, to a power brick below.
Source: https://www.reddit.com/r/esp32/comments/1osvbhn/mini_bart_re...
An idea well executed! tips hat
This should be a commercial product.
BART has a really good merch store. They should totally sell this on there: https://www.railgoods.com/
There a similar one, but it's the Swiss public transport system: https://tramli.ch/
Very cute, I love it.
Love it and I am glad the data is available to make little projects like this. You need to work with more heat or wetting when soldering though.
What a great thing you built!
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