Song Meter SM5 Family Firmware

1.9 (2026-09-30)
  • Adds support for SMM-U3 ultrasonic microphones.
  • Adds a minimum voltage cutoff of 4.0V when using the PowerKit to prevent damaging its internal batteries.
  • Fixes unresponsive buttons/display with certain complex schedules.
  • Fixes an East longitude setting revering to West.
  • Fixes incorrect interpretation of day duty cycles when loading configurations onto the recorder.
1.8 (2026-09-03)
  • Fixes a bug causing incorrect timestamps in zero-crossing filenames and corresponding metadata.
  • Adds “Loc Elevation” to recording metadata to report altitude in meters above mean sea level if known by GPS.
1.7 (2026-08-03)
  • Fix issue with using day duty cycle with more than 14 day on/off time.
  • Fix issue with sunrise/sunset times with offsets crossing midnight.
  • Other minor improvements.
1.6 (2026-06-08)
  • Adds a column per channel in the summary file to show the attached microphone type.
  • Now allows loading configurations with spaces in the name.
  • Fixes the recorder clock time not incrementing on the app status screen while the recorder is sleeping.
1.5 (2026-04-16)
  • Minor UI improvements.
  • Fixed problem making scheduled recordings if battery type is not set.
1.4 (2026-04-09)
  • Added firmware version to the status screen of the recorder.
  • Implemented other minor UI improvements.
  • When paired with app version 2.5.3 or later, fixed issues with START TIME OF NEXT RECORDING and REMAINING RECORDING PERIOD TIME on the status screens.
1.3 (2026-03-25)
  • Fix delay start feature.
  • Improved reporting and handling of card full and other card status.
1.2 (2026-03-19)
  • Fix loading configuration files with time offsets in schedules.
  • Other minor improvements.
1.0 (2026-03-09)

Initial release

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