Release Notes for Version 1.0.1

<bdale@gag.com>

<keithp@keithp.com>

- This document is released under the terms of the - - Creative Commons ShareAlike 3.0 - - license. -

Version 1.0.1 is a major release, adding support for the -TeleMini device and lots of new AltosUI features

1. AltOS

AltOS New Features

-Add TeleMini v1.0 support. -
-Support operation of TeleMetrum with the antenna pointing -aft. Previous firmware versions required the antenna to be -pointing upwards, now there is a configuration option -allowing the antenna to point aft, to aid installation in -some airframes. -
-Ability to disable telemetry. For airframes where an antenna -just isn’t possible, or where radio transmissions might -cause trouble with other electronics, there’s a -configuration option to disable all telemetry. Note that the -board will still enable the radio link in idle mode. -
-Arbitrary frequency selection. The radios in Altus Metrum -devices can be programmed to a wide range of frequencies, so -instead of limiting devices to 10 pre-selected channels, -the new firmware allows the user to choose any frequency in -the 70cm band. Note that the RF matching circuit on the -boards is tuned for around 435MHz, so frequencies far from -that may reduce the available range. -

AltOS Fixes

-Change telemetry to be encoded in multiple 32-byte -packets. This enables support for TeleMini and other devices -without requiring further updates to the TeleDongle -firmware. -
-Kalman-filter based flight-tracking. The model based sensor -fusion approach of a Kalman filter means that AltOS now -computes apogee much more accurately than before, generally -within a fraction of a second. In addition, this approach -allows the baro-only TeleMini device to correctly identify -Mach transitions, avoiding the error-prone selection of a -Mach delay. -

AltosUI New Features

-Add main/apogee voltage graphs to the data -plot. This provides a visual indication if the -igniters fail before being fired. -
-Scan for altimeter devices by watching the defined -telemetry frequencies. This avoids the problem of -remembering what frequency a device was configured -to use, which is especially important with TeleMini -which does not include a USB connection. -
-Monitor altimeter state in "Idle" mode. This -provides much of the information presented in the -"Pad" dialog from the Monitor Flight command, -monitoring the igniters, battery and GPS status -withing requiring the flight computer to be armed -and ready for flight. -
-Pre-load map images from home. For those launch -sites which don’t provide free Wi-Fi, this allows -you to download the necessary satellite images -given the location of the launch site. A list of -known launch sites is maintained at altusmetrum.org -which AltosUI downloads to populate a menu; if -you’ve got a launch site not on that list, please -send the name of it, latitude and longitude along -with a link to the web site of the controlling club -to the altusmetrum mailing list. -
-Flight statistics are now displayed in the Graph -data window. These include max height/speed/accel, -average descent rates and a few other bits of -information. The Graph Data window can now be -reached from the Landed tab in the Monitor Flight -window so you can immediately see the results of a -flight. -

AltosUI Changes

-Wait for altimeter when using packet mode. Instead -of quicly timing out when trying to initialize a -packet mode configuration connection, AltosUI now -waits indefinitely for the remote device to appear, -providing a cancel button should the user get -bored. This is necessary as the TeleMini can only be -placed in "Idle" mode if AltosUI is polling it. -