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| -rw-r--r-- | TelePyro/index.mdwn | 47 | ||||
| -rw-r--r-- | TeleTerra/index.mdwn | 61 | ||||
| -rw-r--r-- | index.mdwn | 6 |
3 files changed, 114 insertions, 0 deletions
diff --git a/TelePyro/index.mdwn b/TelePyro/index.mdwn new file mode 100644 index 0000000..8ff5001 --- /dev/null +++ b/TelePyro/index.mdwn @@ -0,0 +1,47 @@ +# TelePyro + +This is an 8-channel pyro expansion board for [TeleMetrum](../TeleMetrum/). + +## Motivation ## + +It would be nice to support more than the 2 channels of igniter control +included in the stock [TeleMetrum](../TeleMetrum/) design, so that we can +fly more complex projects involving staging, air starts, and backup ejection +charges. + +## Features ## + +### User View ### + +* Small circuit board mounted near [TeleMetrum](../TeleMetrum/) +* Requires rework of [TeleMetrum](../TeleMetrum/) to replace onboard igniter +channels with cable providing access to LiPo power and implementing +I2C protocol. +* Connections for 8 distinct igniter firing channels provided +* Supports use of separate battery for ejection charges + +### Developer View ### + +* [Microchip 16F882](http://www.microchip.com/wwwproducts/Devices.aspx?dDocName=en530146) Microcontroller + * 3.5k Flash + * 128 bytes RAM + * I2C target interface + * In-circuit programming interface +* Software Features (planned) + * Written in PIC assembler + * Runs from on-chip flash, uses on-chip RAM +* 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) + * The software is licensed [GPL version 2](http://www.gnu.org/licenses/old-licenses/gpl-2.0.html) + +## Problems ## + +* Since we didn't anticipate this design, [TeleMetrum](../TeleMetrum/) needs +minor rework to interface with this board. + +## Artifacts ## + +As of 11 April 2009, an incomplete schematic exists, but nothing is +published yet. diff --git a/TeleTerra/index.mdwn b/TeleTerra/index.mdwn new file mode 100644 index 0000000..94ce15d --- /dev/null +++ b/TeleTerra/index.mdwn @@ -0,0 +1,61 @@ +# TeleTerra + +This is a hand-held ground station for [TeleMetrum](../TeleMetrum/). + +## Motivation ## + +While it is possible to use a partially (or fully!) loaded +[TeleMetrum](../TeleMetrum/) board as a USB to RF interface, we think +it would be cool to have a nice hand-held ground station we can use in +full sunlight on the flight line. If it can help locate the rocket and is +easy to carry during recovery operations, so much the better! + +## Features ## + +### User View ### + +* Hand-held until about the size of a calculator +* Antenna for the telemetry stream from [TeleMetrum](../TeleMetrum/) +* Integrated GPS receiver core to allow display of current user position, +and relative position of GPS-equipped rockets +* Integrated rechargable battery +* USB interface for configuration and power + +### Developer View ### + +* Partially populated [TeleMetrum](../TeleMetrum/) board + * Serial connector used to attach user interface board + * LiPo charge management + * Beeper for audible indications + * RF section with SMA for external antenna + * USB interface +* New user interface board + * [Microchip 16F882](http://www.microchip.com/wwwproducts/Devices.aspx?dDocName=en530146) Microcontroller + * 3.5k Flash + * 128 bytes RAM + * I2C target interface + * In-circuit programming interface + * Serial port + * 4 line, 20 character transreflective text LCD display + * Switches for scrolling, safe/arm, etc + * LEDs to indicate current flight mode, etc +* LiPo battery +* GPS receiver core attached to serial port on new user interface board + +* Software Features (planned) + * Written in PIC assembler + * Runs from on-chip flash, uses on-chip RAM +* 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) + * The software is licensed [GPL version 2](http://www.gnu.org/licenses/old-licenses/gpl-2.0.html) + +## Problems ## + +None yet! + +## Artifacts ## + +As of 11 April 2009, an incomplete schematic exists, but nothing is +published yet. @@ -43,6 +43,12 @@ prototype was built, but never flown. This project is now indefinitely on hold. is our current project, a dual-deploy rocketry altimeter with improved sensor complement and bidirectional RF telemetry link. +* [TelePyro](TelePyro/) is an 8-channel pyro expansion board for +[TeleMetrum](TeleMetrum/). + +* [TeleTerra](TeleTerra) is a hand-held ground station for use with +[TeleMetrum](TeleMetrum/). + # Participants # * [Bdale Garbee](http://gag.com/~bdale) |