Here’s a smart solar floating ball that emits changing colors at night.  Government should invest in these and put them on the bayside waters such as under the Bay Bridge or Golden Gate Bridge to make use of the sunlight, providing nice glowing lights at night.

Main Features:
*Emitting rainbow color
*Color changing automatically
*Floating on water surface
*Fixable by the hole at bottom
*Totally sealed, waterproof
*Operating time up to 12 hours
*No wiring needed, wide application

via 7gadgets

Here’s a creative way to make an RGB Door combination lock.  This will really confuse any intruders from breaking in.

Putting a custom designed electronic lock on your space seems like a geek right of passage. For our latest workspace, we decided to skip the boring numbered keypad and build a custom RGB backlit keypad powered by an Arduino. Instead of typing in numbers, your password is a unique set of colors. In today’s How-To, we’ll show you how to build your own and give you the code to make it all work.

via make

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Here’s an interesting AVR tri-color LED controller.

The new project based in AVR microcontrollers Its an “Habitat Mirror Hack” with RGB Leds (superflux). Its the Peggy Muppets Mirror.

I replace the regular bulbs that it has, with superflux RGB leds and i make a controller based on ATMEGA8 for control 16 rgb leds with 3 bits of color depth (8 colors). In my post you can download scheme, pcb and source code.

[via hackszine] kalanda