This programm uses the Trias-API to request the departure times for a specific stop and creates a countdown for upcoming departures. This should work with all public transport services that provide data in accordance with: VDV 431-2.
The program will prompt you to provide a trias link. This is a link provided by your public transport service, to which you can send http-requests. The RequestorRef identifies you to the server. For the stop simply enter the name of a station you want to create a countdown for. The program is written in python. Comments can be found in the code.