Posts with «prank» label

Meowing Box Will Befuddle Your Friends

If you don’t own a cat, hearing the sound of one meowing from somewhere in the house probably comes as quite a shock. The Cat Prank box built by [Reuben] promises to deliver such hilarity with aplomb. 

The idea is simple: hide the Cat Prank box in a cupboard or other space in a friend’s house, and it will meow from its secret location. When found, either the light sensor or motion sensor will trigger the yowling of an angry feline, with hopefully startling effects.

An Arduino Mini is the brains of the operation, paired with an XY-V17B sound module which plays the required animal wailings. There’s also a 433 MHz radio module that lets the prankster trigger meowing via remote control.

Code is available for those wishing to build their own. We’d love to see a mod with a time delay built in, so the device could be hidden and left to start meowing at some later date when the prankster is far away.

Similar work has graced these pages before, like the devilishly fiendish OpenKobold design. Just make sure your friends are receptive to such jokes before you go ahead and invest time and hardware in the prank!

Hack a Day 30 Jan 06:00

New and Awesome on Make: Projects

Android-Controlled LED Light Shirt

Write an Android app to control an LED light shirt. The app communicates to an ATmega128 via a BlueSMiRF Bluetooth transceiver. The microcontroller outputs data on the SPI to daisy-chained shift-register-controlled constant-current regulators driving RGB LEDs.
Author: Michael Kane

Guitar Speaker

How I turned my old broken guitar into a speaker.
Author: Daniel McGregor

A Shook-Up Mouse

Slow day at work? Want to turn your mouse into a cool practical joke? Make this vibrating mouse and have some fun with your co-workers.
Author: Gene Bergmann

Wine Cork Board

Recycle wine corks into a functional and stylish cork board.
Author: x2Jiggy