Support for the Text, Clock and Weather app - V2.1.0

fOS v2.1.0 Release Notes

Release date: 2026-05-17

Highlights

fOS 2.1.0 extends the SD app runtime with new app types and major runtime decoupling:

• new clock and weather SD app types in AppContent
• SD text editor app no longer depends on legacy ui_ScreenText runtime
• upgraded radio, clock, and weather app UX in the shared app runtime

Added

• New app type: clock
  • Current Time and Stopwatch tabs
  • calendar view with current day highlight
  • current month opened by default
  • stopwatch controls (Reset, Start/Pause)
• New app type: weather
  • weather UI rendered in AppContent
  • IP-based location detection
  • current temperature and humidity
  • current weather phenomenon and detected location
  • 7-day weather forecast in roller
• New weather data pipeline:
  • geolocation via ip-api.com
  • weather data via open-meteo.com
• New SD example app entries:
  • clock_demo
  • weather_demo
  • text (AppContent-based text editor app)

Changed

• type=text app in folder /apps/text now opens as the full editor UI inside AppContent (independent runtime path).
• Radio runtime UI redesigned to match the new visual system:
  • tabs: File Player and Web Radio
  • centered play/pause control (> / ||)
  • updated dark panel/roller styling
• Clock runtime behavior updates:
  • stopwatch does not auto-start on app open
  • auto-sync to current calendar month once system time becomes valid
• UnloadApp() now also clears clock/weather runtime state.

Fixed

• Clock app startup stability improved (reduced object pressure and guarded UI creation paths).
• Weather app data-fetch reliability improved by replacing unstable provider path that returned server/client errors in field testing.

SD App Metadata (Current)

Supported app.cfg keys in 2.1.0:

• name
• icon
• type=ui|text|button|calculator|radio|clock|weather
• scrollable
• layout (for type=ui)
• content (for type=text)
• button_text, button_message (for type=button)

Compatibility Notes

• Existing SD app formats remain supported.
• For web radio, station lines must be Sender|URL in /music/webradio/webradio.txt.
• Weather app requires active internet connectivity for ip-api.com and api.open-meteo.com.
• Recommended Arduino board options:
  • Partition Scheme: Huge APP
  • PSRAM: OPI PSRAM
• Recommended SD format remains FAT32 (MBR preferred).

Known Limitations

• App launcher renders up to 6 app directories from /apps (first 6 discovered).
• Internet-dependent apps (radio streams, weather) depend on network quality and endpoint availability.