--- /dev/null
+# TeleDongle History
+
+## v0.1 ##
+
+The very first TeleDongle boards were built from partially-populated
+[TeleMetrum](../TeleMetrum) v0.1 boards and were, not surprisingly, called
+TeleDongle v0.1.
+
+## v0.2 ##
+
+The first dedicated PCB design, made to fit in small Hammond translucent blue
+box, "just worked". So we put it into production and sold several
+hundred over time. In hindsight, we should have renamed it to v1.0 when we
+put it into production. Then, since v0.2 and v2.0 just seemed to confusing,
+when we came up with an improved version we jumped straight from v0.2 to v3.0!
+
+Here's a photo of what the v0.2 circuit board looked like:
+
+<img src="v0.2/cimg5556-small.jpg">
+
+### User View ###
+
+* 70cm ham-band transceiver for interaction with [TeleMetrum](../TeleMetrum/)
+* programmed for 38k4 GFSK data rate with forward error correction
+* USB interface for power, configuration, and data interface
+* 4 pin Tyco MicroMaTch connector for debug and flash programming
+* 8 pin Tyco MicroMaTch connector supports serial or SPI interface
+* 1.1 x 1.1 inch 2-layer board, fits inexpensive Hammond 1551 plastic enclosure
+
+### Developer View ###
+
+* [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
+* 100mA 3.3V LDO regulator
+ * takes input from USB interface by default
+ * output appears on 8-pin companion connector
+ * can take input from 8-pin companion connector in non-USB applications
+* Software Features
+ * Written mostly in C with some 8051 assembler
+ * Runs from on-chip flash, uses on-chip RAM
+ * USB serial emulation for data interface
+* 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 v0.2 hardware design current gEDA files are available from
+[git.gag.com](http://git.gag.com) in the project
+[hw/teledongle](http://git.gag.com/?p=hw/teledongle;a=summary).
+
+For those who don't have ready access to the gEDA suite, here are pdf snapshots
+of files in more easily readable form.
+
+* [schematic](v0.2/teledongle.pdf)
+* [pcb artwork](v0.2/teledongle.pcb.pdf)
+* [bill of materials](v0.2/partslist.csv)
+
projects / web / altusmetrum / blobdiff