Merge pull request #18 from akuker/akuker_readme_update

add history clarification

README.md

@@ -1,13 +1,27 @@
 # Background
 
-This is a fork of Difegue's version of the [adbuino](https://github.com/Difegue/Chaotic-Realm), which was a modified version of [bbraun's](http://synack.net/svn/adbduino/) PS/2 to ADB arduino sketch, with some extra code added to alleviate issues with his own PS/2 keyboard.  For Difegue's original write-up, please read more info [here.](https://tvc-16.science/adbuino-ps2.html).
+"Adbuino" has a long history of different people tinkering with it. Just to provide some clarity...
+
+- ORIGINAL PS/2 version - In the beginning - bbraun created the adbuino project and generously open sourced it. The links aren't working anymore, but the original SVN repo was [bbraun's](http://synack.net/svn/adbduino/)
+- Difegue PS/2 version - 2020 - Difegue's version of the [adbuino](https://github.com/Difegue/Chaotic-Realm), modified [bbraun's](http://synack.net/svn/adbduino/) version, with some extra code added to alleviate issues with his own PS/2 keyboard.
+- akuker USB version - 2022 - akuker converted Difegue's version to use a USB controller and created a PCB design using KiCad.
+- [QuokkADB](QuokkADB.md) - 2023 - [Rabbit Hole computing](https://github.com/rabbitholecomputing) created a new PCB based on the RP2040 (instead of Atmel chip). [Morio](https://github.com/morio), ported the code to the dual core RP2040, removed the dependency on the expensive MAX3421E USB controller and updated it to a PlatformIO project. Morio graciously merged their code changes back into [akuker/adbuino](http://github.com/akuker/adbuino)
+- [HIDHopper_ADB](https://github.com/TechByAndroda/HIDHopper_ADB) - 2023 - [TechByAndroda](https://github.com/TechByAndroda) forked the repo and made a new PCB that uses a Raspberry Pi Pico (instead of a chip-down RP2040)
+
+Its GPL code. It belongs to the community. Do fun GPL stuff with it. 
 
+# akuker USB Adbuino
 ![ADBuino picture](images/adbuino_0p9.png)
+This is a fork of Difegue's version of the [adbuino](https://github.com/Difegue/Chaotic-Realm), which was a modified version of [bbraun's](http://synack.net/svn/adbduino/) PS/2 to ADB arduino sketch, with some extra code added to alleviate issues with his own PS/2 keyboard.  For Difegue's original write-up, please read more info [here.](https://tvc-16.science/adbuino-ps2.html).
 
 # QuokkADB
 ![QuokkADB picture](images/quokkadb-in-case.jpg)
 QuokkADB is a modified version of [adbuino](https://github.com/akuker/adbuino). It is targeted to the Rabbit Hole Computing's QuokkADB device. QuokkADB is a Raspberry Pi RP2040 based device that takes in USB inputs from a keyboard and/or mouse and outputs Apple's ADB (Apple Desktop Bus).  Further information can be found in the [QuokkADB.md](QuokkADB.md) file. 
 
+# HIDHopper_ADB
+![HIDHopper picture](images/HIDHopper_Front_WithHat.jpeg)
+HIDHopper_ADB is a modified (forked) version of adbuino and QuokkADB. It is a Raspberry Pi Pico based hardware device which converts USB keyboard and mouse inputs to the Apple Desktop Bus (ADB) standard.
+
 # Hack-y Alternative
 The USB ADBuino is essentially a "value-engineered" version of a bunch of off-the-shelf components.