## Artifacts ##
The hardware design current gEDA files are available from
-[git.gag.com](http://git.gag.com) in the project hw/telemetrum. The 'fab'
-tag on the master branch reflects
-the artwork as sent out for PCB fab. The 'loaded' tag on the master branch
-indicates the parts Bdale loads for a functional board, but the schematic
-does not reflect the cuts and jumps or added resistors. The 'nextcut' branch
-is work towards our next PCB revision. The 'ground' branch has a cut-down
-schematic used to generate the BOM for partially loading boards to use in
-the matching [TeleTerra](../TeleTerra) ground station design.
+[git.gag.com](http://git.gag.com) in the project
+[hw/telemetrum](http://git.gag.com/?p=hw/telemetrum;a=summary).
-For those who don't have ready access to the gEDA suite, here are pdf snapshots
-of files in more easily readable form. The schematic and BOM are from the
-'nextcut' branch as of 20 April 2009, the artwork is of the v0.1 boards:
-
-* [schematic](telemetrum.pdf)
-* [pcb artwork](telemetrum.pcb.pdf)
-* [bill of materials](telemetrum.bom)
+Work on the next version proceeds on the master branch, with occasional
+temporary branches created when Bdale is making some major / speculative
+change. The 'v0.2' and 'v0.1' branches document what we're actually flying
+right now on the two respective PCB revisions. The 'ground' branch has a
+cut-down schematic used to generate the BOM for partially loading v0.1 boards
+to used on the ground. We call the on-the-ground version 'TeleDongle'.
-
-Keith has working firmware that has now been flown once and successfully
-collected flight data to apogee. The source is also available from
-[git.gag.com](http://git.gag.com) in the project fw/altos. Not that actually
-building these sources requires a modifified version of sdcc and a set of
-helper utilities that we're not publishing since we hope to have the important
-bits accepted upstream shortly. Watch this space for more details soon.
+For those who don't have ready access to the gEDA suite, here are pdf snapshots
+of files in more easily readable form.
+
+* These are from the v0.2 branch:
+
+** [schematic](v0.2/telemetrum.pdf)
+** [pcb artwork](v0.2/telemetrum.pcb.pdf)
+** [bill of materials](v0.2/partslist.csv)
+
+* These are as of the working-v0.1 tag:
+
+** [schematic](v0.1/telemetrum.pdf)
+** [pcb artwork](v0.1/telemetrum.pcb.pdf)
+** [bill of materials](v0.1/telemetrum.bom)
+
+We have firmware that works well enough that we now routinely allow TeleMetrum
+to control flights by firing ejection charges. We've flown v0.1 boards in
+rockets exceeding 50g acceleration, above Mach 1, and to altitudes greater
+than 12k feet AGL with great results. Keith wrote a ground station program
+called
+ao-view that logs telemetry to disk, displays current and max
+values for key parameters during flight, and even includes voice synthesis
+during the flight so that our eyes can stay on the rockets! We have post
+flight analysis software that makes it easy to extract data from the board,
+analyze it, and even generate KML files for viewing flights in GoogleEarth!
+More details on the software, including full source code and pre-built packages
+can be found on the [AltOS](../AltOS) page on this site.
+
+## Future Plans ##
+
+Work is underway on a second revision of TeleMetrum with the following changes:
+
+* stretch board length by 0.25 inches
+* adjust USB connector position to be flush with edge of board
+* eliminate temperature sensor, since baro sensor is already compensated and there's a sensor on the cc1111
+* eliminate serial port connector
+* integrate SkyTraq Venus GPS receiver and patch antenna on-board
+* change debug connector to 4 pin Tyco MicroMaTch
+* add 8 pin Tyco MicroMaTch connector for companion board interface
+* use v_lipo as pyro power, eliminating the huge 1000uF capacitor and instead
+ adding ballast capacitance on the 3.3V rail to prevent brownouts
+* move all connectors, beeper, and GPS patch antenna to the "other side" of the board from the surface mount parts
+* add a rectangle of silk screen material for improved serial number labeling
+
+As of early December 2009, the layout work for v0.2 is done and we're busy
+verifying it and deciding exactly how we're going to build them. We hope to
+have first prototypes to test in time to show the new version at LCA in late
+January 2010. If it works out as well as we hope, v0.2 may be made available
+in assembled and tested form to others in the rocketry hobby who have
+expressed interest sometime in 2010.