FarrellF.com

Telemetry Viewer v0.8 Changelog (2021-07-24)

• Multiple telemetry connections are now possible.
• Basic triggering was added for time domain charts. It works like an oscilloscope: trigger on a rising edge, falling edge, or both edges. The usual trigger modes are supported: auto, normal and single.
• The timeline now has a full set of playback controls. You can jump to the beginning, jump to the end, play, pause, and rewind. Playback and rewinding speed can be adjusted from 1x to 8x.
• Cameras are now managed like regular connections, and exporting them creates standard MKV files. The MKV files can be played back in common movie players like VLC, or they can be imported back into TelemetryViewer. The benefit of playing them with TelemetryViewer is that the timestamps for each frame are displayed on screen.
• Exporting is much faster now and the exporting process can be canceled.
• Added support for the RDTech TC66/TC66C USB-C power meters. They are available here: https://amzn.to/3l6QFYD
• Added a "Statistics Chart" which can calculate and display the minimum/maximum/mean/median/standard deviation/90th percentile. The chart can also be used as a simple numeric display (showing just the current value of a dataset.)
• Transmitting to UARTs is now supported. Data can be specified in text/hex/binary forms. Data can be sent once or repeatedly, and the data can be bookmarked for later use.
• "Test Mode" has been renamed to "Demo Mode" to make what it does more obvious. New waveforms were added to help demonstrate trigger functionality.
• Massive speed improvements were made in the data processing logic, and a "Stress Test Mode" was added to benchmark it. A modern laptop can process and visualize telemetry at speeds over 5Gbps.
• For binary mode, the sync word is now optional and its value can be specified. Example Java code is also provided for binary mode UDP connections.
• Notifications are now drawn with OpenGL, resulting is much smoother animations. They now slide into or out of existence. The different notification categories can be enabled or disabled, and their colors can be changed.
• Replaced the color picker with an easier and simpler design.
• Benchmarking now profiles every chart on screen instead of just one.
• Added support for uint32 binary datasets. Note that samples are processed and stored into float32's, so the full range of uint32 samples can not be perfectly represented.
• Lots of minor changes to improve the user experience. Some of the textboxes now shows units to make things more obvious, and some dropdown boxes were replaced with button groups to require one less click from the user.
• Various small bug fixes. See the git commit log for more details.

Java 16+ Notes

Java 16 made some changes to how the internal APIs work. Java 17 then made further changes. The OpenGL library that I use interacts with some of those internal APIs, and an updated version that is compatible with Java 16 or newer has not been released yet. As a work around, if you use Java 16 or newer you must run the .jar file from the command line with some special flags:

This work around also applies to older versions of Telemetry Viewer when using Java 16+.

Telemetry Viewer v0.8 Demo Video

Download

Executables (.jar) and source code (.zip) can be downloaded at http://www.farrellf.com/TelemetryViewer/ or the project can be viewed at https://github.com/farrellf/TelemetryViewer