Add support for live London Underground and DLR departures#156
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omega1119 wants to merge 4 commits into
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Add support for live London Underground and DLR departures#156omega1119 wants to merge 4 commits into
omega1119 wants to merge 4 commits into
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added 4 commits
June 9, 2026 09:30
- Only recreate viewports when data actually changes - Reuse existing viewport between refresh cycles - Separates data refresh from rendering for smooth animations - Includes tube disruption message support and direction filtering
- tubeDirection='westbound' now correctly maps to direction='inbound' in API - tubeDirection='eastbound' maps to direction='outbound' - Fixes issue where compass direction filters were never matching - When westbound service is available, it will now display correctly
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This pull request introduces a major new feature: support for live London Underground and DLR departures using the TfL Unified API, selectable via a new
modeenvironment variable. It also updates configuration, documentation, and display logic to support this new mode, while maintaining compatibility with the existing National Rail departures. Below are the most important changes:New Feature: TfL Underground/DLR Departures
modetotube. The display now renders an Underground-style next-train board with arrival order, destination, and a live countdown, as well as a scrolling status line showing platform and live train location. No API key is required for TfL, but an optionaltflAppKeycan be provided to increase rate limits. [1] [2] [3] [4] [5] [6] [7] [8] [9] [10] [11] [12] [13]Configuration and Environment Variables
balena.ymland documentation to add new environment variables:mode,tubeLine,tubeDirection, andtflAppKey. These allow selection of data source, filtering by line or direction, and configuration for both National Rail and TfL modes. [1] [2] [3] [4] [5] [6]Display and Rendering Logic
main.pyto support the TfL board layout, including destination, countdown, and a scrolling status line. The startup screen now displays "Powered by Transport for London" when in tube mode. [1] [2] [3] [4] [5] [6]Documentation Updates
README.mdand configuration docs to describe the new TfL mode, clarify which API keys are required, and provide instructions and notes for using tube mode, including differences in filtering and display compared to National Rail. [1] [2] [3] [4]Versioning
0.8.0to reflect the addition of the new feature. [1] [2]…ied API