--- /dev/null
+# LipoCharger
+
+This is a simple but effective charger for LiPo batteries. It has a higher
+charge rate than the on-board charger on [TeleMetrum](../TeleMetrum), and
+will be necessary for charging the batteries used with projects like
+[TeleNano](../TeleNano) and [TeleMini](../TeleMini), which do not have
+on-board charging capability.
+
+## Features ##
+
+### User View ###
+
+* Wall-wart power supply to our standard 2mm LiPo battery connector
+* 1.0 x 0.4 inch board
+
+### Developer View ###
+
+* Hardware Features
+ * [Microchip MCP73837](http://www.microchip.com/wwwproducts/Devices.aspx?dDocName=en531507) Li-ion battery charger chip
+ * Strain-relief holes for soldering to wall-wart leads
+* Tools Used
+ * [gEDA](http://www.gpleda.org/) for schematic capture and PCB layout
+* Licenses
+ * The hardware is licensed under the [TAPR](http://www.tapr.org) [Open Hardware License](http://www.tapr.org/ohl.html)
+
+## Artifacts ##
+
+The design files can be found on [git.gag.com](http://git.gag.com) in the
+project [hw/lipocharger](http://git.gag.com/?p=hw/lipocharger;a=summary).
+
+## Future Plans ##
+
+We need to build and evaluate some prototypes, and review costing, before
+deciding whether this design will go into production.
--- /dev/null
+# TeleMini
+
+This is a very small, baro-only recording dual-deploy altimeter for
+high power model rocketry with integrated telemetry link.
+
+## Motivation ##
+
+We'd like to fly smaller rockets really high, which motivates an interest
+in both electronic deployment and radio direction finding for post-flight
+rocket recovery.
+
+## Features ##
+
+### User View ###
+
+* Recording altimeter for model rocketry
+* Supports dual deployment (can fire 2 ejection charges)
+* 70cm ham-band transceiver for telemetry downlink
+* Barometric pressure sensor good to 45k feet MSL
+* Designed to use a single LiPo rechargeable battery
+* 1.5 x 0.5 inch board designed to fit inside 18mm airframe coupler tube
+
+### Developer View ###
+
+* Hardware Features
+ * [TI CC1111F32](http://focus.ti.com/docs/prod/folders/print/cc1111f32.html) Low Power RF System-on-Chip
+ * Sub-1Ghz transceiver
+ * 8051 MCU
+ * 32k Flash
+ * 4k RAM
+ * USB 2.0
+ * 6 12-bit analog inputs (11 bits with single-ended sensors)
+ * 2 channels of serial I/O
+ * digital I/O
+ * [Freescale MP3H6115A](http://www.freescale.com/webapp/search.partparamdetail.framework?PART_NUMBER=MP3H6115A6U) pressure sensor
+* Software Features
+ * Written mostly in C with some 8051 assembler
+ * Runs from on-chip flash, uses on-chip RAM, stores flight data to
+ upper blocks of on-chip flash
+* Tools Used
+ * [gEDA](http://www.gpleda.org/) for schematic capture and PCB layout
+ * [SDCC](http://sdcc.sourceforge.net/) compiler and source debugger
+* Licenses
+ * The hardware is licensed under the [TAPR](http://www.tapr.org) [Open Hardware License](http://www.tapr.org/ohl.html)
+ * The software is licensed [GPL version 2](http://www.gnu.org/licenses/old-licenses/gpl-2.0.html)
+
+## Artifacts ##
+
+The design files can be found on [git.gag.com](http://git.gag.com) in the
+project [hw/telemini](http://git.gag.com/?p=hw/telemini;a=summary).
+
+## Future Plans ##
+
+We need to build and evaluate some prototypes, and review costing, before
+deciding whether this design will go into production.
--- /dev/null
+# TeleNano
+
+This is an extremely small, baro-only recording altimeter for
+high power model rocketry with integrated telemetry link.
+
+## Motivation ##
+
+We hope with TeleNano to deliver an interesting "introductory" product
+in a different price category than our flagship products like
+[TeleMetrum](../TeleMetrum). The combination of a baro altimeter and
+radio direction finding ability in a super-tiny package seems like it
+might be fun even for [Estes](http://www.estesrockets.com/) sized rockets!
+
+## Features ##
+
+### User View ###
+
+* Recording altimeter for model rocketry
+* 70cm ham-band transceiver for telemetry downlink
+* Barometric pressure sensor good to 45k feet MSL
+* Designed to use a single LiPo rechargeable battery
+* 1.0 x 0.5 inch board designed to fit inside 18mm airframe coupler tube
+
+### Developer View ###
+
+* Hardware Features
+ * [TI CC1111F32](http://focus.ti.com/docs/prod/folders/print/cc1111f32.html) Low Power RF System-on-Chip
+ * Sub-1Ghz transceiver
+ * 8051 MCU
+ * 32k Flash
+ * 4k RAM
+ * USB 2.0
+ * 6 12-bit analog inputs (11 bits with single-ended sensors)
+ * 2 channels of serial I/O
+ * digital I/O
+ * [Freescale MP3H6115A](http://www.freescale.com/webapp/search.partparamdetail.framework?PART_NUMBER=MP3H6115A6U) pressure sensor
+* Software Features
+ * Written mostly in C with some 8051 assembler
+ * Runs from on-chip flash, uses on-chip RAM, stores flight data to
+ upper blocks of on-chip flash
+* Tools Used
+ * [gEDA](http://www.gpleda.org/) for schematic capture and PCB layout
+ * [SDCC](http://sdcc.sourceforge.net/) compiler and source debugger
+* Licenses
+ * The hardware is licensed under the [TAPR](http://www.tapr.org) [Open Hardware License](http://www.tapr.org/ohl.html)
+ * The software is licensed [GPL version 2](http://www.gnu.org/licenses/old-licenses/gpl-2.0.html)
+
+## Artifacts ##
+
+The design files can be found on [git.gag.com](http://git.gag.com) in the
+project [hw/telenano](http://git.gag.com/?p=hw/telenano;a=summary).
+
+## Future Plans ##
+
+We need to build and evaluate some prototypes, and review costing, before
+deciding whether this design will go into production.
projects / web / altusmetrum / commitdiff