# Bus/train countdown display

**URL:** <https://discourse.southlondonmakerspace.org/t/bus-train-countdown-display/26498>\
**Category:** Discussion\
**Created:** [13 March 2023 23:28 UTC](https://discourse.southlondonmakerspace.org/t/bus-train-countdown-display/26498 "2023-03-13T23:28:33Z")\
**Posts on this page:** 20\
**Page:** 1

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**Author:** ![futureshape](https://discourse.southlondonmakerspace.org/user_avatar/discourse.southlondonmakerspace.org/futureshape/32/6687_2.png) [@futureshape](https://discourse.southlondonmakerspace.org/u/futureshape)\
**Post date:** [13 March 2023 23:28 UTC](https://discourse.southlondonmakerspace.org/t/bus-train-countdown-display/26498/1 "2023-03-13T23:28:33Z")

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Anyone interested in having a countdown display in the main room with upcoming buses and trains from Herne Hill station?

I might have enough displays and mcus sitting around to build something like this.

(Yes I know you can also check it on your phone/laptop but we’re a makerspace!)

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**Author:** ![Walid](https://discourse.southlondonmakerspace.org/user_avatar/discourse.southlondonmakerspace.org/walid/32/15397_2.png) [@Walid](https://discourse.southlondonmakerspace.org/u/Walid)\
**Post date:** [13 March 2023 23:46 UTC](https://discourse.southlondonmakerspace.org/t/bus-train-countdown-display/26498/2 "2023-03-13T23:46:38Z")

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I would love this. Keeps the train times for late nights at a glance.

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**Author:** ![Federico](https://discourse.southlondonmakerspace.org/user_avatar/discourse.southlondonmakerspace.org/federico/32/20049_2.png) [@Federico](https://discourse.southlondonmakerspace.org/u/Federico)\
**Post date:** [14 March 2023 01:39 UTC](https://discourse.southlondonmakerspace.org/t/bus-train-countdown-display/26498/3 "2023-03-14T01:39:33Z")

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I’d love it  
Could you also add trains from Denmark hill 😀?

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**Author:** ![Kyle](https://discourse.southlondonmakerspace.org/user_avatar/discourse.southlondonmakerspace.org/kyle/32/12237_2.png) [@Kyle](https://discourse.southlondonmakerspace.org/u/Kyle)\
**Post date:** [14 March 2023 03:07 UTC](https://discourse.southlondonmakerspace.org/t/bus-train-countdown-display/26498/4 "2023-03-14T03:07:42Z")

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And the 35/37 bus schedule for me, @Ryanf, @PReardon, et al 🙂

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**Author:** ![Geraetefreund](https://discourse.southlondonmakerspace.org/user_avatar/discourse.southlondonmakerspace.org/geraetefreund/32/20119_2.png) [@Geraetefreund](https://discourse.southlondonmakerspace.org/u/Geraetefreund)\
**Post date:** [14 March 2023 06:26 UTC](https://discourse.southlondonmakerspace.org/t/bus-train-countdown-display/26498/5 "2023-03-14T06:26:57Z")

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Fabulous idea! Yes please!

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**Author:** ![emuboy](https://discourse.southlondonmakerspace.org/user_avatar/discourse.southlondonmakerspace.org/emuboy/32/16794_2.png) [@emuboy](https://discourse.southlondonmakerspace.org/u/emuboy)\
**Post date:** [14 March 2023 10:11 UTC](https://discourse.southlondonmakerspace.org/t/bus-train-countdown-display/26498/6 "2023-03-14T10:11:16Z")

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Maybe we can finally fit the panopticon and write a plug in for it?

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**Author:** ![futureshape](https://discourse.southlondonmakerspace.org/user_avatar/discourse.southlondonmakerspace.org/futureshape/32/6687_2.png) [@futureshape](https://discourse.southlondonmakerspace.org/u/futureshape)\
**Post date:** [14 March 2023 10:22 UTC](https://discourse.southlondonmakerspace.org/t/bus-train-countdown-display/26498/7 "2023-03-14T10:22:15Z")

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Panopticon? Tell me more! (always up for playing with new displays)

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**Author:** ![emuboy](https://discourse.southlondonmakerspace.org/user_avatar/discourse.southlondonmakerspace.org/emuboy/32/16794_2.png) [@emuboy](https://discourse.southlondonmakerspace.org/u/emuboy)\
**Post date:** [14 March 2023 15:41 UTC](https://discourse.southlondonmakerspace.org/t/bus-train-countdown-display/26498/8 "2023-03-14T15:41:10Z")

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The inverted panopticon it’s a 360 degree led sign I built for the Makerspace for the EMF Camp, it’s around 768 LEDs, all laser cutted and 3D printed, and is opensource

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**Author:** ![futureshape](https://discourse.southlondonmakerspace.org/user_avatar/discourse.southlondonmakerspace.org/futureshape/32/6687_2.png) [@futureshape](https://discourse.southlondonmakerspace.org/u/futureshape)\
**Post date:** [14 March 2023 16:13 UTC](https://discourse.southlondonmakerspace.org/t/bus-train-countdown-display/26498/9 "2023-03-14T16:13:32Z")

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Where does it live? I’m happy to give it a try

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**Author:** ![James\_Hunter](https://discourse.southlondonmakerspace.org/user_avatar/discourse.southlondonmakerspace.org/james_hunter/32/14896_2.png) [@James\_Hunter](https://discourse.southlondonmakerspace.org/u/James_Hunter)\
**Post date:** [14 March 2023 16:54 UTC](https://discourse.southlondonmakerspace.org/t/bus-train-countdown-display/26498/10 "2023-03-14T16:54:54Z")

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I just googled that panopticon display. Looks fantastic.

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**Author:** ![emuboy](https://discourse.southlondonmakerspace.org/user_avatar/discourse.southlondonmakerspace.org/emuboy/32/16794_2.png) [@emuboy](https://discourse.southlondonmakerspace.org/u/emuboy)\
**Post date:** [14 March 2023 22:59 UTC](https://discourse.southlondonmakerspace.org/t/bus-train-countdown-display/26498/11 "2023-03-14T22:59:46Z")

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> [@futureshape](#):
>
> Where does it live?

Well, at my place,

the code is here:

> **[GitHub - andreacampanella/esp-rgb-led-matrix: Full RGB LED matrix, based on an ESP32 and WS2812B...](https://github.com/andreacampanella/esp-rgb-led-matrix)**
>
> Full RGB LED matrix, based on an ESP32 and WS2812B LEDs.

the 3D model:

> **[The Inverted Panopticon by emuboy | Download free STL model | Printables.com](https://www.printables.com/model/194298-the-inverted-panopticon)**
>
> An Open Source 360 Degree wifi LED sign | Download free 3D printable STL models

Fair warning, is big.

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**Author:** ![futureshape](https://discourse.southlondonmakerspace.org/user_avatar/discourse.southlondonmakerspace.org/futureshape/32/6687_2.png) [@futureshape](https://discourse.southlondonmakerspace.org/u/futureshape)\
**Post date:** [15 March 2023 21:11 UTC](https://discourse.southlondonmakerspace.org/t/bus-train-countdown-display/26498/12 "2023-03-15T21:11:27Z")

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![image](https://slms-discourse.s3.dualstack.eu-west-2.amazonaws.com/original/2X/d/de050d7ca73bbe58e39fd41fd900be701fbe27db.jpeg)

First iteration, proof of concept to check that I can do this all in micropython, also because I’m stuck at home sick and need something to do!

Still pondering what would be the ideal display for this, especially so we don’t waste a lot of power. Maybe I’ll try to get my hands on a 7 inch e-paper display.

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**Author:** ![emuboy](https://discourse.southlondonmakerspace.org/user_avatar/discourse.southlondonmakerspace.org/emuboy/32/16794_2.png) [@emuboy](https://discourse.southlondonmakerspace.org/u/emuboy)\
**Post date:** [15 March 2023 21:36 UTC](https://discourse.southlondonmakerspace.org/t/bus-train-countdown-display/26498/13 "2023-03-15T21:36:29Z")

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Not OLED, that’s for sure 😃

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**Author:** ![chris\_c](https://discourse.southlondonmakerspace.org/letter_avatar/chris_c/32/5_5575768a8748004e209b776fc1b2916d.png) [@chris\_c](https://discourse.southlondonmakerspace.org/u/chris_c)\
**Post date:** [15 March 2023 22:14 UTC](https://discourse.southlondonmakerspace.org/t/bus-train-countdown-display/26498/14 "2023-03-15T22:14:13Z")

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I have a spare 4.2" e-paper display ([https://www.waveshare.com/wiki/4.2inch\_e-Paper\_Module\_Manual#Introduction](https://www.waveshare.com/wiki/4.2inch_e-Paper_Module_Manual#Introduction)) - happy to give it to a new home if it’d be of any use?

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**Author:** ![asander1](https://discourse.southlondonmakerspace.org/user_avatar/discourse.southlondonmakerspace.org/asander1/32/14251_2.png) [@asander1](https://discourse.southlondonmakerspace.org/u/asander1)\
**Post date:** [16 March 2023 01:07 UTC](https://discourse.southlondonmakerspace.org/t/bus-train-countdown-display/26498/15 "2023-03-16T01:07:11Z")

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Nice! Looking good so far!

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**Author:** ![futureshape](https://discourse.southlondonmakerspace.org/user_avatar/discourse.southlondonmakerspace.org/futureshape/32/6687_2.png) [@futureshape](https://discourse.southlondonmakerspace.org/u/futureshape)\
**Post date:** [16 March 2023 08:51 UTC](https://discourse.southlondonmakerspace.org/t/bus-train-countdown-display/26498/16 "2023-03-16T08:51:10Z")

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Thanks, Chris - this might be a good start. I’ll DM you to see if we can arrange a handover.

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**Author:** ![joeatkin2](https://discourse.southlondonmakerspace.org/user_avatar/discourse.southlondonmakerspace.org/joeatkin2/32/15352_2.png) [@joeatkin2](https://discourse.southlondonmakerspace.org/u/joeatkin2)\
**Post date:** [16 March 2023 12:29 UTC](https://discourse.southlondonmakerspace.org/t/bus-train-countdown-display/26498/17 "2023-03-16T12:29:53Z")

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Fantastic we’ve been talking about this for years the display we always intended to use of a large LED matrix situated in the back of the wood shop

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**Author:** ![futureshape](https://discourse.southlondonmakerspace.org/user_avatar/discourse.southlondonmakerspace.org/futureshape/32/6687_2.png) [@futureshape](https://discourse.southlondonmakerspace.org/u/futureshape)\
**Post date:** [16 March 2023 13:46 UTC](https://discourse.southlondonmakerspace.org/t/bus-train-countdown-display/26498/18 "2023-03-16T13:46:53Z")

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hey Joe, do you know anything more about this led matrix display? (Size, specs, where it currently lives after the wood shop moved to arch 2)

I can take a look next time I’m at the space.

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**Author:** ![joeatkin2](https://discourse.southlondonmakerspace.org/user_avatar/discourse.southlondonmakerspace.org/joeatkin2/32/15352_2.png) [@joeatkin2](https://discourse.southlondonmakerspace.org/u/joeatkin2)\
**Post date:** [17 March 2023 08:32 UTC](https://discourse.southlondonmakerspace.org/t/bus-train-countdown-display/26498/19 "2023-03-17T08:32:46Z")

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It’s big and talks rs485 in the standard format used when it was manufactured well documented and open.

Next time you see me we can go find it

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**Author:** ![petra](https://discourse.southlondonmakerspace.org/letter_avatar/petra/32/5_5575768a8748004e209b776fc1b2916d.png) [@petra](https://discourse.southlondonmakerspace.org/u/petra)\
**Post date:** [17 March 2023 14:37 UTC](https://discourse.southlondonmakerspace.org/t/bus-train-countdown-display/26498/20 "2023-03-17T14:37:33Z")

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468 and 68 for me

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