We wanted to get you started on a high tech prank that's sure to annoy your friends and coworkers. We combine an Arduino Pro Micro with a USB Male connector to create a hardware mouse jiggler.
We're still about three weeks out from April Fools' Day, but if I showed you the prank then, you wouldn't have time to make your own! If you're ready to take your practical jokes to the electronics level, I give you:
The idea is simple: an Arduino-based Pro Micro enumerates as a USB mouse, and every 10-20 seconds, it randomly jumps, moves or jitters your target's mouse pointer. Here is a video of it in action:
Once you plug it into your target's computer (I recommend a desktop, as it's too easy to see the USB ports on most laptops), just walk away, and the mouse pointer will develop a mind of its own (assuming the Arduino random number generator is a close enough approximation to a "mind").
If you're interested in making your own, a full set of instructions can be found in the following tutorial:
What other high tech pranks have you pulled before, or seen in action?