...One button cycles: a clock, bus arrival times at the local stop to a preset destination, trains to a specific destination and finally a summary weather forecast (if you need an umbrella!) It does not cover the Underground as these services are so frequent to not require a timetable.
It runs adequately on an old Pi Zero W. All the APIs are free, but the Train and Weather require sign up. The device features a time out to prevent hammering the API. It is enclosed in a small plastic food container.
code coming 23 Jan 2023