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chrisys / train-departure-display

A replica, near real-time, miniature UK railway station train departure sign based upon a Raspberry Pi Zero and 256x64 SPI OLED display

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Debug screen

stephenhibbert opened this issue · comments

commented

Spotted this debug screen today at Greenwich station, could be cool to have something similar to display the IP address on boot.image

commented

I've created a mockup of this which seems to work well.

I have no idea what some of the codes on this screen signify, but here's what I've replaced:
image

1 = Current station code set in config
2 = Platform (shows PlatAll if no platform set) (todo: have different platform based on screen)
3 = Current version of Train Departure Display
4 = Today's date (can't think of an easy way to get the build date of the software without adding a new file)
5 = IP address

The next decision is when to show this. Open to suggestions here, especially from @chrisys as it's your project! 😂

I wondered about replacing the splash screen if a debug mode is enabled, or maybe even having a debug flag that leaves this screen on constantly.

commented

Wow @CalamityJames I was just trying to clear my plate so I could have a look at this ticket this afternoon! This is great!

Here are my thoughts:

  • I like your idea of a debug flag to show it, maybe something like if the var is set to TRUE it's always on but if it's an integer we show it on startup for that number of seconds? That feels like it would handle a decent amount of what people might want to do with it.
  • My preference would be to remove information that doesn't mean anything in our scenario, but retain the look and feel, so maybe something like...
  • Display = <departureStation>[-><destinationStation>](Plat<platform>) <refreshTime>s <operatingHours> so we'd end up with something like 'PAD->HWV (PlatAll) 120s 8-22h'
  • Script = VERSION (I think we can just stick with the version here, as you say, date is a bit hard to do for the source, and I think today's would be misleading). Another option would be to get the build date of the current release from the balenaCloud API.
  • Address = device MAC address? UID = balenaCloud device UUID (first 7 chars from BALENA_DEVICE_UUID), IP=local IP

What do you think?

commented

Something like this? 😁
image
(After putting a MAC address in I don't think there's room for UID)

Also, here it is without some extra options just for completeness
image

commented

@CalamityJames looks great to me!