easytimer prototypes loaded

[web/altusmetrum] / TelePyro / index.mdwn

diff --git a/TelePyro/index.mdwn b/TelePyro/index.mdwn
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--- a/TelePyro/index.mdwn
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@@ -1,7 +1,11 @@
+[[!meta title="TelePyro"]]
 # TelePyro
 
 This is an 8-channel pyro expansion board for [TeleMetrum](../TeleMetrum/).
 
+<a href="v0.1/telepyro-top.jpg"> <img src="v0.1/telepyro-top-thumb.jpg"></a>
+<a href="v0.1/telepyro-bottom.jpg"> <img src="v0.1/telepyro-bottom-thumb.jpg"></a>
+
 ## Motivation ##
 
 It would be nice to support more than the 2 channels of igniter control
@@ -14,21 +18,25 @@ charges.
 ### 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.
+* Requires [TeleMetrum](../TeleMetrum/) v0.2 or later, as v0.1 does not 
+  have the required companion board interface
 * Connections for 8 distinct igniter firing channels provided
 * Supports use of separate battery for ejection charges
 
 ### Developer View ###
 
-* [Microchip 16F886](http://www.microchip.com/wwwproducts/Devices.aspx?dDocName=en530146) Microcontroller
-       * 8k Flash
-       * 386 bytes RAM
-       * I2C target interface
-       * In-circuit programming interface
+* Hardware Features
+       * [Atmel ATmega32U4](http://www.atmel.com/dyn/products/product_card.asp?category_id=163&family_id=607&subfamily_id=760&part_id=4317) Microcontroller
+               * 32k Flash
+               * 2.5k + 832 bytes SRAM
+               * 1k EEPROM
+               * 12-channel 10-bit ADC
+               * SPI target interface
+               * USB interface which can be used for programming
+               * In-system programming interface
+       * Honeywell HMC5843 3-axis magnetic flux sensor
 * Software Features (planned)
-       * Written in PIC assembler
+       * programmed in C using gcc-avr
        * Runs from on-chip flash, uses on-chip RAM
 * Tools Used
        * [gEDA](http://www.gpleda.org/) for schematic capture and PCB layout
@@ -36,12 +44,19 @@ I2C protocol.
        * 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 ##
+## Artifacts ##
+
+A schematic and PC board design exist on [git.gag.com](http://git.gag.com) 
+in the project [hw/telepyro](http://git.gag.com/?p=hw/telepyro;a=summary), 
+but no prototypes have been built yet.
 
-* Since we didn't anticipate this design, [TeleMetrum](../TeleMetrum/) needs
-minor rework to interface with this board.
+## Future Plans ##
 
-## Artifacts ##
+In late September 2011, v0.1 prototype boards were loaded and lightly
+tested.  They were never flown.  The prototypes of TelePyro were lost in the 
+[Black Forest Fire](http://www.gag.com/blackforestfire.html), and have not
+been replaced.
 
-As of 11 April 2009, an incomplete schematic exists, but nothing is 
-published yet.
+If we ever get back to this project, the first thing we'll want to do is toss
+out the current design and start over, using an ARM Cortex SOC and our "new
+pyro circuit" that completely prevents processor brown-out.