* \li Gumbi, a Python library and USB GPIO controller: https://code.google.com/p/gumbi/
* \li Hardware Volume Control: https://github.com/davidk/hw-volume-control
* \li Hiduino, a USB-MIDI replacement firmware for the Arduino Uno: http://code.google.com/p/hiduino/
+ * \li HoodLoader2, an Arduino Uno enhanced USB AVR coprocessor firmware: https://github.com/NicoHood/HoodLoader2
* \li IBM capacitive keybord replacement controller: http://downloads.cornall.co/ibm-capsense-usb-web/ibm-capsense-usb.html
* \li Ikea RGB LED USB modification: http://slashhome.se/p/projects/id/ikea_dioder_usb/#project
* \li IR electricity meter monitor: http://sourceforge.net/projects/irmetermon/
* \li Flysight, a GPS logger for wingsuit pilots: http://flysight.ca/
* \li Goldilocks, an Arduino compatible clone: http://feilipu.me/2014/03/08/goldilocks-1284p-arduino-uno-clone/
* \li HummingBird Kit, a robotics learning platform: http://www.hummingbirdkit.com/
+ * \li LP1, an AVRISP-MKII Clone AVR Programmer: http://embeddedglow.com/items/LP1/LP1.php
* \li Penguino, an Arduino Board With On-Board LUFA Powered Debugger/Programmer: http://wiki.icy.com.au/PenguinoAVR
* \li PhatIO, a filesystem based I/O interface: http://www.phatio.com/
* \li PIR-1, an IR control interface for consumer electronics: http://www.promixis.com/pir-1.php