light-pack - USB content-driving ambient lighting system UPD 12 December 2013: Since Google is about to close binaries uploads, new releases are available for download at Github This is an English version of Russian open-hardware Lightpack project. Lightpack is a monitor light device used for presence effect strengthening. The software analyses the image on your monitor and transfers its data by USB to the Ligthpack board. This board lights the surface behind a monitor, TV or laptop by means of RGB LEDs of the corresponded colors. light-pack - USB content-driving ambient lighting system
USB Dead Drops
usb instructables