move TeleMetrum v2.0 info to the history file

diff --git a/TeleMetrum/history.mdwn b/TeleMetrum/history.mdwn
index c3c0e568077382a06774497869cd7db72cf81e59..d021378632655718a0b8ac21d72da2c66abedcab 100644 (file)
--- a/TeleMetrum/history.mdwn
+++ b/TeleMetrum/history.mdwn
@@ -232,3 +232,70 @@ Changes from v1.1 include:
   theory made it possible for pyro charges to fire at power on.  We never saw
   a problem, but the change was easy and obvious.
 
+## v2.0 ##
+
+<a href="v2.0/telemetrum-v2.0-th.jpg"> <img src="v2.0/telemetrum-v2.0-th-thumb.j
+pg"></a>
+<a href="v2.0/telemetrum-v2.0-smt.jpg"> <img src="v2.0/telemetrum-v2.0-smt-thumb
+.jpg"></a>
+
+Prototypes of v2.0 were first flown at Airfest 2013, and v2.0 was sold through
+fall of 2019.
+
+Compared with the v1 series, v2 includes a better GPS (uBlox vs
+Skytraq), higher power radio (40mW instead of 10mW), wider range and
+more precise pressure sensor (100k' MSL vs 45k' MSL), larger on-board
+storage (8MB vs 2MB), more precise, wider range accelerometer (12 bits 
+instead of 10 bits, 105g instead of 70g) and faster processor (32-bit ARM 
+Cortex M3 instead of 8-bit 8051).
+
+### 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 100k feet MSL
+* 1-axis 105-g accelerometer for motor characterization
+* On-board, integrated GPS receiver
+* On-board non-volatile memory for flight data storage
+* USB for power, configuration, and data recovery
+* Integrated support for LiPo rechargeable batteries
+* Uses LiPo to fire e-matches, can be made to support separate pyro battery
+* 2.75 x 1 inch board designed to fit inside 29mm airframe coupler tube
+
+### Developer View ###
+
+* Hardware Features of v2.0
+        * ST Micros [STM32L151](http://www.st.com/internet/mcu/product/248821.js
+p) ARM Cortex M3 based Microcontroller
+        * TI [CC1120](http://www.ti.com/product/cc1120) High Performance RF Tran
+sceiver for Narrowband Systems
+        * 150mA 3.3V LDO regulator
+        * [Winbond W25Q64CV](http://www.winbond.com/hq/enu/ProductAndSales/Produ
+ctLines/FlashMemory/SerialFlash/W25Q64CV.htm) serial flash memory
+        * [u-blox](http://www.u-blox.com/) MAX-7Q GPS receiver
+                * on-board passive patch antenna
+                * async serial interface
+        * Measurement Specialties [MS5607](http://www.meas-spec.com/product/t_pr
+oduct.aspx?id=8499) Micro Altimeter Module
+                * Wide range — 120kPa to 1kPa (approximately -1500m to 31000m)
+                * High precision — 2.4Pa resolution (approximately 20cm at sea l
+evel)
+                * Factory calibrated.
+        * Freescale [MMA6555](http://www.freescale.com/webapp/sps/site/prod_summ
+ary.jsp?code=MMA65xx&fsrch=1&sr=1) Single Axis SPI Intertial Sensor
+                * +- 105g full-scale
+                * on-chip 12-bit digitizer
+* Software Features
+        * Written mostly in C with some ARM assembler
+        * Runs from on-chip flash, uses on-chip RAM, stores flight data to seria
+l flash
+        * USB serial emulation for "console" interface
+* 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 H
+ardware License](http://www.tapr.org/ohl.html)
+        * The software is licensed [GPL version 2](http://www.gnu.org/licenses/o
+ld-licenses/gpl-2.0.html)
+