This little nifty device thingy is based on a ATTiny45 micro-controller and is designed to be plugged in into an available USB port, and to remain there unnoticeable. It than takes control of the caps lock function turning it on (or off).

Now we can take over computers World Wide and spread the love for caps! Just imagine that the person sitting at that computer will go nuts trying to figure what’s happening

“This device plugs into a USB port and implements a USB HID keyboard. Instead of doing anything useful, it waits between 30 seconds and 8 minutes and sends the scancode for the Caps Lock key. This will toggle the Caps Lock status on or off. Since the operating system controls the LED on the keyboard, the Caps Lock light also toggles. This makes it appear the user has accidentally pressed the Caps Lock key…until it happens 20 or 30 times and they get suspicious. Then they might see the Caps Lock light turn on by itself. Next is a sequence of reboots, bashing the keyboard on the desk, clicking through the Control Panel, possibly even replacing the keyboard. Unless they notice the tiny little device sitting in one of the USB ports on the back of their computer, nothing will help.”

You can find all the info needed to build this bad boy here found at [link]