+production and retired.</p><div class="table"><a id="idm715"></a><p class="title"><strong>Table E.1. Altus Metrum Flight Computer Electronics</strong></p><div class="table-contents"><table class="table" summary="Altus Metrum Flight Computer Electronics" cellpadding="4px" style="border-collapse: collapse;border-top: 1px solid #78079a; border-bottom: 1px solid #78079a; border-left: 1px solid #78079a; border-right: 1px solid #78079a; "><colgroup><col class="col_1" /><col class="col_2" /><col class="col_3" /><col class="col_4" /><col class="col_5" /><col class="col_6" /><col class="col_7" /><col class="col_8" /></colgroup><thead><tr><th style="border-right: 1px solid #78079a; border-bottom: 1px solid #78079a; " align="left" valign="top">Device </th><th style="border-right: 1px solid #78079a; border-bottom: 1px solid #78079a; " align="left" valign="top"> Barometer </th><th style="border-right: 1px solid #78079a; border-bottom: 1px solid #78079a; " align="left" valign="top"> Z-axis accel </th><th style="border-right: 1px solid #78079a; border-bottom: 1px solid #78079a; " align="left" valign="top"> GPS </th><th style="border-right: 1px solid #78079a; border-bottom: 1px solid #78079a; " align="left" valign="top"> 3D sensors </th><th style="border-right: 1px solid #78079a; border-bottom: 1px solid #78079a; " align="left" valign="top"> Storage </th><th style="border-right: 1px solid #78079a; border-bottom: 1px solid #78079a; " align="left" valign="top"> RF Output </th><th style="border-bottom: 1px solid #78079a; " align="left" valign="top"> Battery</th></tr></thead><tbody><tr><td style="border-right: 1px solid #78079a; " align="left" valign="top"><p>EasyMini v1.0</p></td><td style="border-right: 1px solid #78079a; " align="left" valign="top"><p>MS5607 30km (100k')</p></td><td style="border-right: 1px solid #78079a; " align="left" valign="top"><p>-</p></td><td style="border-right: 1px solid #78079a; " align="left" valign="top"><p>-</p></td><td style="border-right: 1px solid #78079a; " align="left" valign="top"><p>-</p></td><td style="border-right: 1px solid #78079a; " align="left" valign="top"><p>1MB</p></td><td style="border-right: 1px solid #78079a; " align="left" valign="top"><p>-</p></td><td style="" align="left" valign="top"><p>3.7-12V</p></td></tr></tbody></table></div></div><br class="table-break" /><p></p><div class="table"><a id="idm755"></a><p class="title"><strong>Table E.2. Altus Metrum Flight Computer Mechanical Components</strong></p><div class="table-contents"><table class="table" summary="Altus Metrum Flight Computer Mechanical Components" cellpadding="4px" style="border-collapse: collapse;border-top: 1px solid #78079a; border-bottom: 1px solid #78079a; border-left: 1px solid #78079a; border-right: 1px solid #78079a; "><colgroup><col class="col_1" /><col class="col_2" /><col class="col_3" /><col class="col_4" /><col class="col_5" /><col class="col_6" /></colgroup><thead><tr><th style="border-right: 1px solid #78079a; border-bottom: 1px solid #78079a; " align="left" valign="top">Device</th><th style="border-right: 1px solid #78079a; border-bottom: 1px solid #78079a; " align="left" valign="top">Connectors</th><th style="border-right: 1px solid #78079a; border-bottom: 1px solid #78079a; " align="left" valign="top">Screw Terminals</th><th style="border-right: 1px solid #78079a; border-bottom: 1px solid #78079a; " align="left" valign="top">Width</th><th style="border-right: 1px solid #78079a; border-bottom: 1px solid #78079a; " align="left" valign="top">Length</th><th style="border-bottom: 1px solid #78079a; " align="left" valign="top">Tube Size</th></tr></thead><tbody><tr><td style="border-right: 1px solid #78079a; " align="left" valign="top"><p>EasyMini</p></td><td style="border-right: 1px solid #78079a; " align="left" valign="top"><p>Debug USB Battery</p></td><td style="border-right: 1px solid #78079a; " align="left" valign="top"><p>Apogee pyro Main pyro Battery</p></td><td style="border-right: 1px solid #78079a; " align="left" valign="top"><p>0.8 inch (2.03cm)</p></td><td style="border-right: 1px solid #78079a; " align="left" valign="top"><p>1½ inch (3.81cm)</p></td><td style="" align="left" valign="top"><p>24mm coupler</p></td></tr></tbody></table></div></div><br class="table-break" /></div><div class="appendix"><div class="titlepage"><div><div><h1 class="title"><a id="_release_notes"></a>Appendix F. Release Notes</h1></div></div></div><div class="section"><div class="titlepage"><div><div><h2 class="title" style="clear: both"><a id="_release_notes_for_version_1_8_3"></a>F.1. Release Notes for Version 1.8.3</h2></div></div></div><p>Version 1.8.3 includes support for TeleMega version 3.0 along
+with two important flight computer fixes. This version also
+changes KML export data to make Tripoli Record reporting
+better and some updates to graph presentation and data
+downloading.</p><div class="section"><div class="titlepage"><div><div><h3 class="title"><a id="_altos"></a>F.1.1. AltOS</h3></div></div></div><div class="section"><div class="titlepage"><div><div><h4 class="title"><a id="_altos_new_features"></a>AltOS New Features</h4></div></div></div><div class="itemizedlist"><ul class="itemizedlist" style="list-style-type: disc; "><li class="listitem">
+Support for TeleMega version 3.0 hardware.
+</li></ul></div></div><div class="section"><div class="titlepage"><div><div><h4 class="title"><a id="_altos_bug_fixes"></a>AltOS Bug Fixes</h4></div></div></div><div class="itemizedlist"><ul class="itemizedlist" style="list-style-type: disc; "><li class="listitem">
+Ground testing EasyMega and TeleMega additional pyro
+channels could result in a sticky <span class="emphasis"><em>fired</em></span> status which would
+prevent these channels from firing on future flights.
+</li><li class="listitem">
+Corrupted flight log records could prevent future flights
+from capturing log data.
+</li><li class="listitem">
+Fixed saving of pyro configuration that ended with
+<span class="emphasis"><em>Descending</em></span>.
+</li></ul></div></div></div><div class="section"><div class="titlepage"><div><div><h3 class="title"><a id="_altosui_and_telegps_applications"></a>F.1.2. AltosUI and TeleGPS Applications</h3></div></div></div><div class="section"><div class="titlepage"><div><div><h4 class="title"><a id="_altosui_new_features"></a>AltosUI New Features</h4></div></div></div><div class="itemizedlist"><ul class="itemizedlist" style="list-style-type: disc; "><li class="listitem">
+Support for TeleMega version 3.0.
+</li><li class="listitem">
+Graph lines have improved appearance to make them easier to
+distinguish. Markers may be placed at data points to show
+captured recorded data values.
+</li><li class="listitem">
+Graphing offers the ability to adjust the smoothing of
+computed speed and acceleration data.
+</li><li class="listitem">
+The download dialog now offers to graph new flights, checks
+for existing files to avoid overwriting data and reports if
+there are checksum errors in the downloaded data.
+</li></ul></div></div><div class="section"><div class="titlepage"><div><div><h4 class="title"><a id="_altosui_telegps_bug_fixes"></a>AltosUI/TeleGPS Bug Fixes</h4></div></div></div><div class="itemizedlist"><ul class="itemizedlist" style="list-style-type: disc; "><li class="listitem">
+Restore TeleGPS tracking behavior.
+</li><li class="listitem">
+Display flight computer call sign and serial number in
+Monitor Idle mode instead of ground station values.
+</li></ul></div></div><div class="section"><div class="titlepage"><div><div><h4 class="title"><a id="_altosui_and_telegps_changes"></a>AltosUI and TeleGPS Changes</h4></div></div></div><div class="itemizedlist"><ul class="itemizedlist" style="list-style-type: disc; "><li class="listitem">
+KML export now reports both barometric and GPS altitude data
+to make it more useful for Tripoli record reporting.
+</li><li class="listitem">
+CSV export now includes TeleMega/EasyMega pyro voltages and
+tilt angle.
+</li></ul></div><p></p></div></div></div><div class="section"><div class="titlepage"><div><div><h2 class="title" style="clear: both"><a id="_release_notes_for_version_1_8_2"></a>F.2. Release Notes for Version 1.8.2</h2></div></div></div><p>Version 1.8.2 includes support for TeleGPS version 2.0 along
+with accelerometer recalibration support in AltosUI.</p><p>1.8.2 also contains a couple of minor fixes for AltosUI when
+analyzing saved data files.</p><div class="section"><div class="titlepage"><div><div><h3 class="title"><a id="_altos_2"></a>F.2.1. AltOS</h3></div></div></div><p>AltOS New Features</p><div class="itemizedlist"><ul class="itemizedlist" style="list-style-type: disc; "><li class="listitem">
+Support for TeleGPS version 2.0 hardware.
+</li></ul></div></div><div class="section"><div class="titlepage"><div><div><h3 class="title"><a id="_altosui_and_telegps_applications_2"></a>F.2.2. AltosUI and TeleGPS Applications</h3></div></div></div><p>AltosUI and TeleGPS New Features</p><div class="itemizedlist"><ul class="itemizedlist" style="list-style-type: disc; "><li class="listitem">
+Support for TeleGPS version 2.0.
+</li><li class="listitem">
+Accelerometer re-calibration user interface.
+</li></ul></div><p>AltosUI and TeleGPS Bug Fixes</p><div class="itemizedlist"><ul class="itemizedlist" style="list-style-type: disc; "><li class="listitem">
+Prevent some crashes when reading older saved flight data
+for graphing or KML export.
+</li></ul></div><p></p></div></div><div class="section"><div class="titlepage"><div><div><h2 class="title" style="clear: both"><a id="_release_notes_for_version_1_8_1"></a>F.3. Release Notes for Version 1.8.1</h2></div></div></div><p>Version 1.8.1 includes an important bug fix for Apogee Lockout
+operation in all flight computers. Anyone using this option
+must update firmware.</p><p>This release also contains a change in how flight computers
+with accelerometers deal with speeds around and above Mach
+1. In previous versions, the flight computer would completely
+disregard the barometric sensor above 330m/s (around Mach
+1). Now, the data from the barometric sensor is reduced in
+effect without ever going away entirely. This prevents early
+drogue deployment for flights which spend considerable time
+above Mach 1.</p><p>1.8.1 also contains a couple of minor fixes for AltosUI when
+analyzing saved data files.</p><div class="section"><div class="titlepage"><div><div><h3 class="title"><a id="_altos_3"></a>F.3.1. AltOS</h3></div></div></div><p>AltOS Bug Fixes</p><div class="itemizedlist"><ul class="itemizedlist" style="list-style-type: disc; "><li class="listitem">
+Handle time value wrapping in Apogee Lockout
+correctly. Without this, apogee lockout would sometimes
+prevent any drogue charge from firing.
+</li><li class="listitem">
+Change Kalman filter on flight computers with accelerometer
+to continue using the barometric sensor even at high speeds
+to avoid unintentional drogue deployment during
+deceleration.
+</li></ul></div></div><div class="section"><div class="titlepage"><div><div><h3 class="title"><a id="_altosui_and_telegps_applications_3"></a>F.3.2. AltosUI and TeleGPS Applications</h3></div></div></div><p>AltosUI New Features</p><div class="itemizedlist"><ul class="itemizedlist" style="list-style-type: disc; "><li class="listitem">
+Add new <span class="emphasis"><em>Huge</em></span> font size to make text even bigger on high
+resolution monitors.
+</li></ul></div><p>AltosUI Bug Fixes</p><div class="itemizedlist"><ul class="itemizedlist" style="list-style-type: disc; "><li class="listitem">
+Prevent some crashes when reading older saved flight data
+for graphing or KML export.
+</li><li class="listitem">
+Load frequency preference at startup. The loading code was
+broken, so you’d see only the default frequencies.
+</li></ul></div><p></p></div></div><div class="section"><div class="titlepage"><div><div><h2 class="title" style="clear: both"><a id="_release_notes_for_version_1_8"></a>F.4. Release Notes for Version 1.8</h2></div></div></div><p>Version 1.8 includes support for our new TeleBT v4.0 ground
+station, updates for data analysis in our ground station
+software and bug fixes in in the flight software for all our
+boards and ground station interfaces.</p><div class="section"><div class="titlepage"><div><div><h3 class="title"><a id="_altos_4"></a>F.4.1. AltOS</h3></div></div></div><p>AltOS New Features</p><div class="itemizedlist"><ul class="itemizedlist" style="list-style-type: disc; "><li class="listitem">
+Add support for TeleBT v4.0 boards.
+</li></ul></div></div><div class="section"><div class="titlepage"><div><div><h3 class="title"><a id="_altosui_and_telegps_applications_4"></a>F.4.2. AltosUI and TeleGPS Applications</h3></div></div></div><p>AltosUI New Features</p><div class="itemizedlist"><ul class="itemizedlist" style="list-style-type: disc; "><li class="listitem">
+Add support for TeleBT v4.0 hardware
+</li><li class="listitem">
+Rewrite graphing and export functions. This code now handles
+each data series separately so that graphs are drawn
+correctly. Smoothing now uses a filter that looks both
+forward and backwards in time to make computed speed and
+acceleration data more accurate.
+</li></ul></div><p>AltosUI Bug Fixes</p><div class="itemizedlist"><ul class="itemizedlist" style="list-style-type: disc; "><li class="listitem">
+Correct axis labeling of magnetic sensor in TeleMega and
+EasyMega. The Y and Z axes were flipped.
+</li></ul></div><p></p></div></div><div class="section"><div class="titlepage"><div><div><h2 class="title" style="clear: both"><a id="_release_notes_for_version_1_7"></a>F.5. Release Notes for Version 1.7</h2></div></div></div><p>Version 1.7 includes support for our new TeleMini v3.0
+flight computer and bug fixes in in the flight software for all our boards
+and ground station interfaces.</p><div class="section"><div class="titlepage"><div><div><h3 class="title"><a id="_altos_5"></a>F.5.1. AltOS</h3></div></div></div><p>AltOS New Features</p><div class="itemizedlist"><ul class="itemizedlist" style="list-style-type: disc; "><li class="listitem">
+Add support for TeleMini v3.0 boards.
+</li></ul></div><p>AltOS Fixes</p><div class="itemizedlist"><ul class="itemizedlist" style="list-style-type: disc; "><li class="listitem">
+Fix interrupt priorities on STM32L processors. Run timer
+interrupt at lowest priority so that device interrupts get
+serviced first.
+</li></ul></div></div><div class="section"><div class="titlepage"><div><div><h3 class="title"><a id="_altosui_and_telegps_applications_5"></a>F.5.2. AltosUI and TeleGPS Applications</h3></div></div></div><p>AltosUI New Features</p><div class="itemizedlist"><ul class="itemizedlist" style="list-style-type: disc; "><li class="listitem">
+Add support for TeleMini v3.0 hardware
+</li></ul></div><p></p></div></div><div class="section"><div class="titlepage"><div><div><h2 class="title" style="clear: both"><a id="_release_notes_for_version_1_6_8"></a>F.6. Release Notes for Version 1.6.8</h2></div></div></div><p>Version 1.6.8 fixes a TeleMega and TeleMetrum v2.0 bug where
+the device could stop logging data and transmitting
+telemetry in flight. All TeleMega v1.0, v2.0 and TeleMetrum
+v2.0 users should update their flight firmware.</p><div class="section"><div class="titlepage"><div><div><h3 class="title"><a id="_altos_6"></a>F.6.1. AltOS</h3></div></div></div><p>AltOS fixes:</p><div class="itemizedlist"><ul class="itemizedlist" style="list-style-type: disc; "><li class="listitem">
+Fix STM32L DMA driver to work around STM32L SoC DMA priority
+issue t lock-up in the logging or radio code, either of
+which could stop data logging and telemetry.
+</li><li class="listitem">
+Avoid having TeleBT battery status values smash telemetry
+packet data by holding a lock during both operations.
+</li><li class="listitem">
+Don’t start reporting <span class="emphasis"><em>flight 0</em></span> when the log fills in
+flight.
+</li></ul></div><p>AltOS changes:</p><div class="itemizedlist"><ul class="itemizedlist" style="list-style-type: disc; "><li class="listitem">
+Flash LEDS on all products briefly during power up so that
+they can be tested during production.
+</li></ul></div></div><div class="section"><div class="titlepage"><div><div><h3 class="title"><a id="_altosui_telegps_and_altosdroid_applications"></a>F.6.2. AltosUI, TeleGPS and AltosDroid Applications</h3></div></div></div><p>AltosUI fixes:</p><div class="itemizedlist"><ul class="itemizedlist" style="list-style-type: disc; "><li class="listitem">
+Re-enable go/no-go entries after they’ve been disabled due
+to lack of data. If telemetry information is delayed when
+the Ui starts up, sometimes important fields would get
+disabled to never re-appear.
+</li><li class="listitem">
+Deal with ground station failure better during Configure
+Ground Station operation by cleaning up pending operations.
+</li></ul></div><p></p></div></div><div class="section"><div class="titlepage"><div><div><h2 class="title" style="clear: both"><a id="_release_notes_for_version_1_6_5"></a>F.7. Release Notes for Version 1.6.5</h2></div></div></div><p>Version 1.6.5 fixes a TeleMega and TeleMetrum v2.0 bug where
+the device would often stop logging data and transmitting
+telemetry in flight. All TeleMega v1.0, v2.0 and TeleMetrum
+v2.0 users should update their flight firmware.</p><div class="section"><div class="titlepage"><div><div><h3 class="title"><a id="_altos_7"></a>F.7.1. AltOS</h3></div></div></div><p>AltOS fixes:</p><div class="itemizedlist"><ul class="itemizedlist" style="list-style-type: disc; "><li class="listitem">
+Fix STM32L SPI driver to prevent lock-up in the logging or
+radio code, either of which could stop data logging and
+telemetry. Found and characterized by Chuck Haskin, who also
+tested the new firmware before release.
+</li></ul></div></div><div class="section"><div class="titlepage"><div><div><h3 class="title"><a id="_altosui_telegps_and_altosdroid_applications_2"></a>F.7.2. AltosUI, TeleGPS and AltosDroid Applications</h3></div></div></div><p>AltosUI fixes:</p><div class="itemizedlist"><ul class="itemizedlist" style="list-style-type: disc; "><li class="listitem">
+Deliver firmward for TeleMega v2.0 and TeleBT v3.0 with
+Windows package.
+</li></ul></div><p></p></div></div><div class="section"><div class="titlepage"><div><div><h2 class="title" style="clear: both"><a id="_release_notes_for_version_1_6_4"></a>F.8. Release Notes for Version 1.6.4</h2></div></div></div><p>Version 1.6.4 fixes a bluetooth communication problem with
+TeleBT v1.0 devices, along with some altosui and altosdroid
+minor nits. It also now ships firmware for some newer devices.</p><div class="section"><div class="titlepage"><div><div><h3 class="title"><a id="_altos_8"></a>F.8.1. AltOS</h3></div></div></div><p>AltOS fixes:</p><div class="itemizedlist"><ul class="itemizedlist" style="list-style-type: disc; "><li class="listitem">
+Fix hardware flow control on TeleBT v1.0. Hardware RTS/CTS
+doesn’t seem to work, switch from using the hardware to
+driving these pins with software.
+</li><li class="listitem">
+Fix ARM USB drivers to deal with OS restarts. Needed to
+reset all USB-related state when the USB bus is reset. These
+fixes affect all STM32L, STM32F0 and LPC11U14 based devices.
+</li></ul></div></div><div class="section"><div class="titlepage"><div><div><h3 class="title"><a id="_altosui_telegps_and_altosdroid_applications_3"></a>F.8.2. AltosUI, TeleGPS and AltosDroid Applications</h3></div></div></div><p>AltosUI, TeleGPS and AltosDroid New Features:</p><div class="itemizedlist"><ul class="itemizedlist" style="list-style-type: disc; "><li class="listitem">
+Automatically switch from meters or feet to kilometers or
+miles for distance units.
+</li><li class="listitem">
+Add Monitor Idle mode to TeleGPS application.
+</li></ul></div><p>AltosUI, TeleGPS and AltosDroid Fixes:</p><div class="itemizedlist"><ul class="itemizedlist" style="list-style-type: disc; "><li class="listitem">
+Abort map preloading when the preload map dialog is closed.
+</li><li class="listitem">
+In AltosDroid, Don’t reconnect to last device if the user
+had disconnected it the last time the application was
+active.
+</li></ul></div></div><div class="section"><div class="titlepage"><div><div><h3 class="title"><a id="_documentation"></a>F.8.3. Documentation</h3></div></div></div><div class="itemizedlist"><ul class="itemizedlist" style="list-style-type: disc; "><li class="listitem">
+Mention TeleMega v2.0 in hardware specs table.
+</li><li class="listitem">
+Document TeleGPS RF output in telegps manual.
+</li></ul></div></div></div><div class="section"><div class="titlepage"><div><div><h2 class="title" style="clear: both"><a id="_release_notes_for_version_1_6_3"></a>F.9. Release Notes for Version 1.6.3</h2></div></div></div><p>Version 1.6.3 adds idle mode to AltosDroid and has bug fixes