Release Notes for Minimus₂/MinimusLite

Change log

2025/08/10 - Experimenta V2.1-21355

This release contains the following fixes:

• Added GDI channel name and custom name to the SeedLink channel description
• Added NTP metrics to the Status page (state, timestamp, stability, source, etc)
• Added NTP option "NTP from DHCP" for servers that provide it
• Added download retry mechanics (for wget style requests)
• Added code for newer hardware changes
• Added "pmt walk" console command
• Improved stack traceback functionality
• Improved GDI, increased max GDI connections to 2
• Improved description of timing markers in GDI streams
• Improved calibration generator, now has more console options
• Improved XML files generation: internal architectural changes
• Improved Seedlink support by matching commands case-insensitive
• Improved Calibration.txt, now lists hex and decimal representations
• Fixed NTP stream latency growing caused by receive time slip
• Fixed edge case crash caused by TCP header parsing
• Fixed GPS debug print-hang on level 5
• Fixed heavy load GDI stream issue

2025/11/14 - Experimental 2.1-20823

This release contains the following fixes:

• Added NTP Server function
• Added username/password for debug console
• Added to Triggers a second CAP message for PGA
• Added a timeout window for both trigger types
• Added an absolute mode to threshold triggers
• Improved Trigger page layout (closer to Minimus)
• Fixed Removed spurious web redraw in Certis Connect
• Fixed Event table displaying a full list of empty rows

2025/05/16 - Release 2.1-19484

This release contains the following fixes:

• Increased size of status.log for atleast a year of logs
• Added auto mass centering for analogue sensors
• Fixed passing changes of poles and zeros to meta data immediately on user change
• Fixed removed _ character from NTP seednames as this caused some receivers to complain
• Fixed Lan power off now works in power save mode

2025/04/10 - Experimental 2.1-19364

This release contains the following fixes:

• Added Station XML support for Certis
• Added PPM status to include number of cells
• Fixed PPM Aux out state on power up from ship mode

2025/03/21 - Experimental 2.1-19317

This release contains the following fixes:

• Added stream connection count to SOH status
• Fixed working with PPM power pack
• Triggers page UI improvements
• Using '_' instead of '-' timing channel seednames
• Fixed corrupted pole and zero values

2025/02/26 - Experimental 2.1-19264

This release contains the following fixes:

• fixed crash on cold start with Certis connected and MINL LP
• fixed gaps in mass channel streams with high sample rates
• added mass channel outputs to status page
• added more choices in registry update rate

2025/01/30 - Experimental 2.1-19083

This release contains the following fixes:

• fixed failure to recognise BT600 device in MinL
• fix crash logs in MinL

2025/01/22 - Experimental 2.1-19069

This release contains the following fixes:

• File transfer through tunnel
• Low power board support
• Calibration stream disabled when cal switched off so saving bandwidth
• Improvements to sensor status on web page. Support of extended status from Certis, Certimus, Aquarius
• Added reset and restart cause and counters
• Software updates over VPN now supported
• Fixed crash on remote terminal connection
• Added Crashlog, DHCP retry
• Added NTP lock
• Added support for smaller (16GB) sd cards
• Added Loop record
• Speedups and improvements in file download

2024/4/16 - Release 2.1-14470

This release contains the following fixes:

• tunnel improvements
• Logging improvements
• Fixed console password reset of shorter string

2024/4/16 - Release 2.1-14176

This release contains the following fixes:

• adc pre-amp gain now reflected in GDI metadata
• Improvements to GPS tracking on loss of lock.
• Fixed memory leak on triggers causing out of memory crash after 10,000 Events!

2024/01/17 - Release 2.1-13721

This release contains the following fixes:

• STA/LTA trigger streams now ranged correctly
• Fixed incorrect start timestamp on new files
• Reduced memory useage so allowing full seedlink buffer
• SD Card flush now writes partial miniseed blocks
• Metadata channels now written more often to sd card
• Maximum length Seedlink buffers now supported
• NAM GDI loss of metadata on selective parameter update
• Fixed crash in triggers when EEW params are calculated
• Max GDI streams reduced to 1.
• Issues with triggering on reboot fixed.
• GPS robustness improved.
• Future commands added.
• Event table download triplet checkbox added.
• General Certis improvements.
• Improvements to system robustness.
• Baidu Maps added as an option for the map on the web page.

2023/10/09 - Release 2.1-12649

This release contains the following fixes:

• Improvements to NTP time.
• Improvements to GPS tracking on loss of lock.

2023/09/14 - Release 2.1-12040

This release contains the following fixes:

• Units modified in the "Edit Poles and Zeros" window in Discovery will now persist over reboots.

2023/09/13 - Release 2.1-12020

This release contains the following fixes:

• Reduced time drift when GPS unit physically removed during operation.
• The web page will now contain a warning when calibration is taking place.
• HTTP port number can now be modified on the web page.
• Various StationXML fixes.
• Improvements to GPS timing robustness.

2023/08/29 - Release 2.1-11823

This release contains the following fixes:

• The stationXML file for the Certis can now be found under Certis.xml
• Improvements to the reporting for the Battery Pack.

2023/08/18 - Release 2.1-11561

This release contains the following fixes:

• Certis full sample rates now available on digital connection

2023/08/11 - Release 2.1-11433

This release contains the following fixes:

• Certis RESP/Dataless files now contain correct frequency response.
• 200 SPS now available for Certis.
• GDI headers now legalised for older NAM compatibility
• Channels relating to Certis can now be found under Certis in the Display on Page dropdown in Data Stream/Record.
• Fixed possibility of gaps in data recorded to the SD cards.
• A Full Format option now exists in the webpage to fully zero out all files.
• Webpage now requires login to access all controls for digitiser.
• Data will still be recorded to external SD card if internal SD card isn't functioning correctly.
• Auxilliary files polezero.txt and calvals.txt are now functional for SCREAM compatibility.
• Instrument Serial number now correctly stored when entered in the Poles and Zeros editor in discovery.
• Download by time will now serve up to the most recent recorded data when future data is requested.
• Warnings and checks added for SD cards of differing sizes

2023/06/29 - Release 2.1-10368

This release contains the following fixes:

• The "Edit Poles and Zeros" page will now correctly disable enabled poles, zeros, or gains.

2023/06/29 - Release 2.1-10362

This release contains the following fixes:

• Calibration Stream is now correctly expressed in Volts.
• Peak ground values are now reported in discovery and the event table
• STA/LTA streams now visible when using STA/LTA triggers
• New low-power modes for guralp battery box
• Tunneling has now been added to the Network tab
• "Flush Data" button now works properly
• Fixed incorrect labelling on the Storage tab buttons
• Fixed downloads sometimes failing
• More stability improvements
• Added Uart Passthrough
• Fixed modified SEED Names being reset on reboot
• Copy to Data Stream/Record now copies SEED names as well as tap configuration
• Apply configuration for tap groups now changes all corresponding sample rates when checked

Release 2.1-9734

This release contains the following fixes:

• Fixed issue with Calibration Signal Generator
• IP Address will now correctly show as DHCP instead of Static

Release 2.1-9653

This release contains the following fixes:

• Fixed incorrect values on power channel
• Corrected ≈1 ms timing offset
• Fixed issue with units of "g" not showing up in Discovery when loading from a dataless file
• Fixed custom units section in poles and zeros section of Discovery
• Fixed incorrect filter coefficients in dataless seed files
• General performance and stability improvements

Release 2.1-9039

This release contains the following fixes:

• Added StationXML files to storage tab under Auxiliary files
• Fixed errors with Triggering
• Fixed errors when attempting to download by time
• Calibration values from Certis will now be viewable in the calibration editor on newer versions of Discovery.
• LED will now flash blue for five cycles upon a trigger.
• event_table.txt now shows <1 second events as "<1" instead of 0 seconds.
• Threshold triggers now identified correctly in event_table.txt.
• Fixed date not showing correctly on system.log.

Release 2.1-8647

This release contains the following fixes:

• Fixed custom channel units reseting on reboot.
• Fixed issues with the threshold trigger on seismic channels.
• Event Table text file (event_table.txt) download can now be found the storage tab of the web page.
• Added timestamps to system.log and fixed errors on some text editors.
• Improvements to STA/LTA trigger performance.

2023-03-20 : release V2.1-7389

This release contains the following fixes:

• SEED names are now delimited with periods; GCF stream names remain hyphen-delimited.
• Added more Platinum-compatible GDI metadata.

Release 2.1-6731

This release contains the following fix:

• Added more Platinum-compatible GDI metadata.

Release 2.1-6633

This release contains the following fixes:

• Removed extra sensors listed underneath Sensor Installation Parameters
• Improved accuracy of Start data timestamp and Last data timestamp
• Certis streams added to download by time dropdown
• Duplicate seed names are now flagged correctly
• Removed duplicate seed names from the default channels
• Backfill now works across multiple files
• Bluetooth reloading of firmware on boot fixed.
• Extra DHCP request after failure on boot.
• General bug fixes and improvements.

Release 2.1-6314

This release contains the following fixes:

• Enabled Auto Reboot
• Removed sensors status from the Status tab on the web page

Release 2.1-6309

This release contains the following fixes:

• Improvements and fixes to timing accuracy
• Added login support
• System.log file is now available under Auxiliary files
• Added some default calibration values
• Added Channel data download by time selection
• Added Download selected files
• Fixed crash on password change
• Fixed corruption of miniseed files

Release 2.1-5790

This release contains the following fixes:

• Timing fixes

Release 2.1-5644

This release contains the following fixes:

• Bluetooth now fully functional. This includes power-saving switches to allow LAN to be re-enabled
• Start- and end-times of SD files now displayed on web page
• Temperature and Humidity now shown of web page. GPS locking bug fixed
• Data-download from web page supported. Dataless SEED generation added
• Calpage editor in Discovery supported
• Lithium battery box support added
• Low-power "LAN off" feature added
• Web page going quiet bug now fixed
• Remote reboot function from Discovery added
• Input voltage and PoE now shown on WEB page

For more information, please email .