X-Git-Url: https://git.gag.com/?a=blobdiff_plain;f=TeleTerra%2Findex.mdwn;h=a66c557e5d0797f1701cd15f556fbb7af6e6b186;hb=211ebbce3da37c51875024035b350307d5e77939;hp=2d70b2c3fc9553b2ad9f83c28b463ae62fd44c33;hpb=d841f82aaf832c021b5c3d7e5af3a59a8a106a44;p=web%2Faltusmetrum

diff --git a/TeleTerra/index.mdwn b/TeleTerra/index.mdwn
index 2d70b2c..a66c557 100644
--- a/TeleTerra/index.mdwn
+++ b/TeleTerra/index.mdwn
@@ -14,7 +14,7 @@ easy to carry during recovery operations, so much the better!
 
 ### User View ###
 
-* Hand-held unit about the size of a calculator
+* Hand-held unit about the size of a calculator with 4 line 20 character LCD
 * 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
@@ -23,27 +23,14 @@ and relative position of GPS-equipped rockets
 
 ### 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 16F886](http://www.microchip.com/wwwproducts/Devices.aspx?dDocName=en530146) Microcontroller
-		* 8k Flash
-		* 386 bytes RAM
-		* I2C target interface
-		* In-circuit programming interface
-		* Serial port
+* Single circuit board
+	* equivalent of a [TeleMetrum](../TeleMetrum/) less the sensors
+	* [Atmel ATtiny48](http://www.atmel.com/dyn/products/product_card_v2.asp?PN=ATtiny48) used as an I/O expander
 	* 4 line, 20 character transreflective text LCD display
-	* Switches for scrolling, safe/arm, etc
-	* LEDs to indicate current flight mode, etc
+	* "joystick" switch for user inputs
 * 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
+	* [AltOS](../AltOS) for the cc1111 and simple C for the AVR
 * Tools Used
 	* [gEDA](http://www.gpleda.org/) for schematic capture and PCB layout
 * Licenses
@@ -56,7 +43,6 @@ None yet!
 
 ## Artifacts ##
 
-As of 26 April 2009, an incomplete schematic exists at
+A tentative schematic exists at
 [git.gag.com](http://git.gag.com) in the project
-[hw/teleterra](http://git.gag.com/?p=hw/teleterra;a=summary).  Caveat emptor!
-published yet.
+[hw/teleterra](http://git.gag.com/?p=hw/teleterra;a=summary).